Calculators
Concrete -
Framing -
Excavation -
How To -
Interior Finishing -
Roofing -
Siding -
Construction Math -
Firewood -
Logging -
Lumber and Timber -
Agriculture
Landscaping
Construction
Concrete Calculators
Concrete Volume Calculators
Imperial
Metric
Shapes using Imperial & Metric Measurements
- Circle
- Circle - Metric
- Donut
- Donut - Metric
- Ellipse
- Ellipse - Metric
- Equilateral Triangle
- Equilateral Triangle - Metric
- Isosceles Trapezoid
- Octagon
- Octagon - Metric
- Oval
- Oval - Metric
- Pentagon
- Pentagon - Metric
- Scalene Triangle
- Scalene Triangle - Metric
- Stadium Shape
- Stadium Shape - Metric
- Trapazoid
- Trapezium
- Plastic Concrete Footing Form
Concrete Stairs
Using Bags of Concrete
Concrete Self Mix Calculators
Concrete Volume and Cost
Rebar
Framing Calculators
Wall and Floor Framing
- Exterior Wall Sheathing + Cost Calculator
- Gable Wall Upper Plate Length
- Gable (Rake) Wall Framing - Wall Height
- Plywood or OSB Sheathing Cost Comparing Calculator
- Plywood Sheathing # of Sheets for Wall or Floor Calculator
- Roof Truss Height
- Steel Stud Wall
- Stud Count
- Stud Length Increase - Gable Wall Framing
- Stud Wall Framing Calculator + Cost
- Sub Floor Material Calculator
- Stud Wall Framing Material Calculator
- Wall Framing Calculator (mulitple walls)
- Wall Section, Stud and Plate Cost (Metric)
Roof Framing
- Birdsmouth Cut, The Heel
- Birdsmouth: Heel Cut, Seat Cut
- Convert a Roof Pitch to an Angle
- Heel Cut of a Birdsmouth
- Height Above Plate (HAP) with Heel Cut Depth
- Height Calculation for a Common Truss
- Rafter Length
- Rafter Length (Metric)
- Rafter Length Calculated in Metres (with rise, run, post height, birdsmouth)
- Rafter Lengths, Hip and Common
- Rafter Length (with rise, run, post height, birdsmouth)
- Roof Measurement
- Roof Pitch
- Roof Sheathing - Gable (Imperial)
- Roof Sheathing - Gable (Metric)
- Roof Sheathing - Hip Roof (Imperial)
- Roof Sheathing - Mansard (Imperial)
- Roof Sheathing - Shed (Imperial)
- Slope, Roof, Hip Valley, Height and Width Factors
Stair Framing
- Advanced Staircase
- Angle of the Stairs
- Stair Riser Height
- Rough Framing, Stairs Material Plus Cost
- Number of Stair Risers Based on Building Code
- Number of Stair Risers Based on Building Code (Metric)
- Simple Stairs
- Stair Design Calculator
- Stair Slope in Degrees and Rise and Run Relationships
- Stair Well Floor Opening Size
- Stringer Length Calculator
Slopes, Grades and Angles
Excavation Calculators
Excavation Calculators
Excavated Materials and Trucking
- Excavation Material Removal Calculator Swell and Shrinkage
- Material from a Rectangular Shaped Excavation
- Number of Truckloads - Imperial
- Number of Truckloads - Metric
- Rectangle Pyramid Pile
- Rectangle Pyramid Pile - Metric
- Volume of a Cone Shaped Pile Calculator
- Volume of a Cone Shaped Pile Calculator - Metric
- Volume of a Pile Calculator
- Volume of a Pile Calculator - Metric
Equipment
Factors, Grades, Percentages
- Elevation Grade Slope in a Percentage, Millimetres
- Elevation Grade from Inches per Foot
- Elevation Grade from a Percentage
- Grade Percentage to Angle in Degrees
- Horizontal Length from Angle and Slope Length
- Spike's Compaction Factor Calculator
- Shrink and Load Factor Calculator
- Slope Percent and Angle of the Slope - Metric
- Swell and Load Factor Calculator
- Vertical Depth from a Slope Percentage and Horizontal Length
Information
How To
- About 20MPa Concrete
- Board and Batten Siding
- Calculate the Amount of Concrete You Will Need
- Calculate With Percentages
- Centimetres To Feet and Inches
- Convert Feet/Inches/Fractions to Decimal Format
- Converting a Value in Decimal Feet to Foot Inch plus Fraction
- Designing the Right Home for your Property
- Drip Cap Corners
- Dropped (Suspended) Ceiling Edge Tiles
- Foundation Excavation
Interior Finishing Calculators
Interior Finishing
Board and Tape
Ceiling Tiles
- Dropped(Suspended)Ceiling End Tile Sizes Metric
- Dropped(Suspended)Ceiling End Tile Sizes
- Dropped (Suspended) Ceiling Materials - Metric
- Dropped (Suspended) Ceiling Materials
Flooring
- Flooring Calculator - Metric
- Flooring Calculator
- Hardwood Flooring Calculator
- Starter Board Size for Hardwood or Laminate Flooring
Insulation
Paint and Wallpaper
- Paint Calculator
- Paint Calculator Metric
- Paint Calculator - Wall and Trim
- Wallpaper Calculator - Metric
- Wallpaper Calculator
Spindles
Tiles
Roofing Materials Calculators
Roofing Materials
- Gable Roof - Asphalt
- Gable Roof - Square Footage
- Gable Roof - Square Metres
- Gable Roof - Wood
- Gable Roof - Sheathing
- Gable Roof Sheathing - Metric
- Gambrel Roof - Asphalt
- Gambrel Roof - Square Footage
- Gambrel Roof - Square Metres
- Gambrel Roof - Wood
- Hip Roof - Asphalt
- Hip Roof - Asphalt Metric
- Hip Roof - Square Footage
- Hip Roof - Square Metres
- Hip Roof- Wood
- Hip Roof - Sheathing
- Hip Roof Sheathing - Metric
- Mansard Roof - Asphalt
- Mansard Roof - Square Footage
- Mansard Roof - Square Metres
- Mansard Roof - Wood
- Mansard Roof Sheathing
- Mansard Roof Sheathing (Metric)
- Quonset Hut
- Quonset Hut - Metric
- Quonset Hut with Walls
- Quonset Hut with Walls - Metric
- Shed Roof - Square Footage
- Shed Roof - Square Metres
- Shed Roof - Wood
- Shed Roof Sheathing
- Shed Roof Sheathing - Metric
- Slate Roof Tiles
- Slate Roof Tiles - Metric
Estimating
Siding & Cladding Calculators
Imperial
Construction Math
Area Calculation
- Area from Foot and Inch Calculator
- Lot and Building Envelope Square Footage
- Square Footage Building Envelope Odd Shaped Lot
Arithmetic
- Adding Foot & Inch to Foot & Inch
- Multiplying Foot & Inch by Foot & Inch
- Various Values of a Number Calculator
Estimating / Multiplier
Fractions and Decimals
How to do things
- Convert Feet in Decimal Format to Foot, Inch and Fraction
- Equation Manipulation
- Calculating with Percentages
- Square Footage of a Rectangle Calculator
Solving a Duel Pitch
Trigonometry
Unit Conversion
Forestry
Firewood Calculators
Firewood
Btu's in relation to Firewood
Imperial
- Calculating potential Btu's of your Firewood
- "Simple" Btu's per Cord of Firewood - Imperial
- Btu's One Pound of Wood Could Produce
- Firewood BTU Calculator
- Firewood BTU Chart
Metric
Moisture Content
Conversion
Firewood vs Fossil Fuels
Logging Calculators
Board Foot Log Rule Calculators
- Brereton Log Rule - Imperial Measurements
- Blodgett Foot Rule
- Doyle Log Rule
- Early Log Rule
- International 1/8-inch Log Rule
- International 1/4-inch Log Rule
- International 1/4-inch Log Rule (Grosenbaugh)
- International 1/8-inch and 1/4-inch Log Rules
- Roy Log Rule
- Ontario Log Rule
- Scribner Log Rule
- Scribner Log Rule: Board Foot Volume of a Tree
- Scribner Decimal C
- Comparing Results from Various Board Feet Log Rules
Cubic Volume Log Rule Calculators
- Brereton Log Rule - Metric Measurements
- Burt's Quarter Girth Method
- Chinese National Standard
- Cubic Metre Rule
- Francon Measure
- Hoppus Rule
- Huber's Formula
- Huber's Formula - Metric
- Ireland - Log Volume Measurement
- Japanese Agricultural Standard (JAS)
- Manitoba - Cubic Method
- Newton's Formula
- Nova Scotia Cubic Metre Log Scale
- Pressler's Cubic Foot Formula
- Smalian's Formula - Metric
- Smalian's Formula - Imperial
- Solid Volume of a Log
- Spike's Rule
- Swedish Log Volume Calculation
- Swedish Log Volume Calculation Method One
- Swedish Log Volume Calculation Method Two
- Swedish Log Volume Calculation Method Three
- William Klemme
Log Weight and Volume Calculators
Proportion - Area Basis Conversions
Proportion - Number Basis Conversions
- Amount per Square Inch to per Square Centimetre
- Amount per Square Centimetre to per Square Inch
- Amount per Square Metre to per Square Foot
- Amount per Square Foot to per Square Metre
- Amount per Square Yard to per Square Metre
- Amount per Square Metre to per Square Yard
- Amount per Milacre to per Square Metre
- Amount per Square Metre to per Milacre
- Amount per Acre to per Hectare
- Amount per Hectare to per Acre
- Amount per Square Mile to per Square Kilometre
- Amount per Square Kilometre to per Square Mile
Proportion - Volume Basis Conversions
Stems, Girth, Diameter and Basal Area Calculators
- Area of a Circle from Diameter in Metres
- Area of a Circle from Foot and Inch Diameter
- Basal Area from Diameter in Centimetres
- Basal Area from Diameter in Inches
- Basal Area from Girth Measured @ Breast Height in Centimetres
- Basal Area from Girth Measured @ Breast Height in Inches
- Circumference (Girth) of a Log from Diameter, Foot and Inch
- Convert Diameter in Centimetres to Girth in Inches
- Circumference (Girth) of a Log from Diameter, Inch and Fraction
- Diameter of Tree from Circumference Measurement
- Diameter/Centimetres to Inches/Quarter Girth
- Fixed Area Plot, Acres
- Fixed Area Plots, Hectares
- Number of Trees and Tree Spacing Calculated from Basal Area
- Square Feet (Quarter Girth) to Square Centimetres
- Square Feet (Quarter Girth) to Square Metres
- Trees per Hectare to Trees per Acre
- Trees per Acre to Trees per Hectare
Standing Tree Volume Calculators
- Doyle Log Rule for Standing Trees
- Doyle Log Rule for Standing Trees using Metric Measurements
- International ¼ Inch Log Rule for Standing Trees
- International ¼ Inch Log Rule for Standing Trees - Metric
- Scribner Log Rule for Standing Trees
- Scribner Log Rule for Standing Trees - Metric
- Standing Tree Cubic Volume Calculator
- Standing Tree Board Foot Volume Based on the Doyle Log Rule
- Standing Tree Board Foot Volume Based on the International 1/4 Log Rule
Lumber and Timber Calculators
Wood and Moisture Calculators
Timber Conversions
- Converting between Wood Specific Gravity Bases
- Cubic Foot to Cubic Metre
- Cubic Foot to Hoppus Feet
- Cubic Foot to Francon Cubic Metres
- Cubic Metre to Cubic Feet
- Cubic Metre to Francon Cubic Metre
- Cubic Metre to Hoppus Feet
- Francon Cubic Metre to Cubic Metres
- Francon Cubic Metre to Hoppus Feet
- Francon Cubic Metre to Cubic Feet
- Hoppus Foot to Cubic Feet
- Hoppus Foot to Cubic Metres
- Hoppus Foot to Francon Cubic Metres
- Petrograd Standard to Cubic Feet and Cubic Metres
Conversions Tables
Agriculture
Farming
Bins and Hoppers
- Bushels in a Cylinder Shaped Bin
- Bushels in a Cylinder Shaped Bin - Metric
- Bushel Storage and Transportation
- Grain Volume in a Conical Pile
- Grain Volume in a Conical Pile - Metric
- Grain Volume of a Box
- Grain Volume of a Box - Metric
- How many Bushels of Grain - Round Grain Bin
- Rectangle Grain Bin Volume and Capacity
- Round Grain Bin Capacity Bushels - Imperial
- Round Grain Bin Capacity Bushels - Metric
- Round Grain Bin Capacity US Bushels
- Round Grain Bin with Hopper Imperial Bushels
- Round Grain Bin with Hopper Capacity US Bushels
- Round Grain Silo Volume and Weight - Metric
- Truncated Rectangle Hopper Volume
- Truncated Rectangle Hopper Volume - Metric
Moisture and Irrigation Calculators
- Constant Shrink Factor - Metric
- Grain Wet to Dry Bushel
- Grain Shrinkage
- Grain Shrinkage Calculator - Metric
- Grain Shrinkage with Initial and Final Moisture Content
- Water Depth and Usage
- Water Shrink Factors
Conversions
- Bushels from Metric Tonnes
- Bushels per Acre to Bushels per Hectare
- Bushels Per Hectare to Bushels Per Acre
- Bushels to Pounds, Kilograms, and Volume
- Bushel to Tonne Converter
- Imperial Bushels Per Acre to US Bushels Per Hectare
- Imperial Bushels Per Hectare to US Bushels Per Acre
- Kilograms per Hectolitre to Pounds per Bushel
- Price per Bushel to Price per Metric Tonnes
- US Bushels Per Acre to Imperial Bushels Per Hectare
- US Bushels Per Hectare to Imperial Bushels Per Acre
Hay and Silage
- Cow Hay Supply
- Hay Bale Count for Barn Storage
- Hay Bale Count for Barn Storage (Metric)
- Hay Bale Estimation
- Hay Bale Estimation - Metric
- Hay Bale Value and Dry Content
- Hay Bale Value and Dry Content (Metric)
- Horse Hay Supply
- Silage Weight Calculator
- Silage Weight Calculator (Metric)
Seed
Irrigation
Cisterns, Tanks and Rainwater Harvesting
- Capacity of a Round Cistern - Imperial measurements
- Capacity of a Round Cistern - Metric measurements
- Capacity of a Square or Rectangular Shaped Cistern - Imperial measurements
- Capacity of a Square or Rectangular Shaped Cistern - Metric measurements
- Collecting Rain Water from a Catchment Area/ Inch per Square Foot
- Rainfall per Unit Area, Inch per Acre
- Rainfall per Unit Area, Millimetres per Acre
- Rainfall per Unit Area, Millimetres per Hectare
Water Flow Rate Calculators
- Garden Hose Flow Calculator
- Measuring the Water Flow from a Tap in Gallons per Minute
- Measuring the Water Flow from a Tap in Litres per Minute
- Water Application Rate for an Area
Water Pressure and Friction Loss
- Pressure Loss in Pipes from Friction
- Valves and Fittings 1/2" to 24" diameter, equivalent length calculation
Conversions
- Decimal Foot to Decimal Inch - Decimal Inch to Decimal Foot
- Decimal Inch and Foot to Metres and Millimetres
New
Orchard and Vineyard
Vineyard Planting Density
- Odd Shaped Vineyard - Imperial
- Odd Shaped Vineyard - Metric
- Vines needed to plant an area
- Vines per Acre Calculator
- Vines per Hectare Calculator
- Grape Vines per Area with Multiple Blocks
- Grape Vines per Area with Multiple Blocks - Metric
Orchard Planting
Helpfull Managament Calculators
- Growing Degree Days (GDD)
- Predicting Wine Grape Crops - Imperial
- Predicting Wine Grape Crops - Metric
- Converting Celsius GDD to Fahrenheit GDD
- Grapes per Hectare/Acre
- Grape Yield and Wine Production - Metric
- Grape Yield and Wine Production
- Grape Yield and Wine Production
- Calculating Number of Acres Planted from Vines Planted
Planting
Planting
- Number of Plants per Acre or Hectare
- Number of Plants in a Calculated Area
- Plants Needed Circular Area
- Plants Needed Circular Area - Metric
- Plants Needed Circular Segment Area
- Plants Needed Circular Segment Area - Metric
- Plants Needed Donut Area
- Plants Needed Donut Area - Metric
- Plants Needed Rectangular Area
- Plants Needed Rectangular Area - Metric
- Plants Needed Right-Angled Triangle Area
- Plants Needed Right-Angled Triangle Area - Metric
- Plants Needed Trapezoid Area
- Plants Needed Trapezoid Area - Metric
For Planting Estimating
Plants and Cost
Tanks
The Volume of a Tank
Calculate the volume and capacity of a tank or container using inches for measurements
- Bowl Tank
- Bowl Tank - Feet
- Cone Tank
- Cone Tank - Feet
- Cube Tank
- Cylinder Tank Horizontal
- Cylinder Tank Horizontal - Feet
- Cylindrical Horizontal Tank with Hemispherical Heads
- Cylindrical Horizontal Tank with Hemispherical Heads - Feet
- Cylinder Tank with Sloped Bottom
- Cylinder Tank with Sloped Bottom -Feet
- Cylinder Tank with a Truncated Funnel
- Cylinder Tank with a Truncated Funnel - Feet
- Cylinder Vertical Tank
- Cylinder Vertical Tank - Feet
- Cylindrical Vertical Tank with Hemispherical Heads
- Cylindrical Vertical Tank with Hemispherical Heads - Feet
- Egg Shaped Tank - Two Measurements
- Egg Shaped Tank - Feet - Two Measurements
- Egg-Shaped Tank - Three Measurements
- Egg-Shaped Tank - Feet - Three Measurements
- Elliptical Cylinder Horizontal
- Elliptical Cylinder Vertical
- Funnel Tank
- Hemisphere Dome Tank
- Oval Vertical Tank
- Rectangle Tank
- Semi Elliptical Dome Tank
- Sphere Tank
- Spherical Dome Tank
- Stadium Tank
- Truncated Cone Tank
- Truncated Funnel Tank
- Vertical Semi-Cylinder Tank - Feet
The Partial Volume of Liquid in a Tank
Calculate the partial volume of liquid in a tank or container using inches for measurements.
- Barrel - Partial Volume
- Bowl Tank - Partial Volume
- Cylindrical Horizontal Tank - Partial Volume
- Cylindrical Vertical Tank with Hemispherical Heads - Partial Volume
- Cylinder Horizontal Tank with Hemispherical Heads - Partial Volume
- cylinder-horizontal-semi-partial.php
- Cylinder Horizontal Tank with Elliptical Heads - Partial Volume
- Cylinder with a Truncated Funnel Bottom Tank - Partial Volume
- Cylinder Vertical Tank - Partial Volume
- Ellipse Horizontal Tank - Partial Volume
- Ellipse Vertical Tank - Partial Volume
- Elliptical Cylinder Tank - Partial Volume
- Funnel Tank - Partial Volume
- Hemisphere Dome Tank - Partial Volume
- Hopper Round Tank - Partial Volume
- Oval Horizontal Tank - Partial Volume
- Rectangle Tank - Partial Volume
- Sphere Tank - Partial Volume
- Stadium Tank - Partial Volume
- Truncated Cone Tank - Partial Volume
- Truncated Funnel Tank - Partial Volume
- Vertical Semi-Cylinder Tank
Tank Volume and Capacity Metric Calculators
- Bowl Tank - Metres
- Bowl Tank - Millimetres
- Elliptical Cylinder Tank - Metres
- Elliptical Cylinder Tank - Millimetres
- Horizontal Cylinder Tank - Metres
- Horizontal Cylinder Tank - Millimetres
- Stadium Tank - Metres
- Stadium Tank - Millimetres
- Truncated Cone Tank - Metres
- Truncated Cone Tank - Millimetres
- Truncated Funnel Tank - Metres
- Truncated Funnel Tank - Millimetres
- Vertical Cylinder Tank - Metres
- Vertical Cylinder Tank - Millimetres
Landscaping
Area and Perimeter Calculators
Area and Perimeter of Various Shapes
Changing the shape of an Area
Acreage or Building Lot Calculators
Stadium Calculators
Fencing
Fencing Calculators
- Fence Panel, Post and Cost Calculator
- Fence Post Hole Concrete Calculator
- Fence Post Hole Concrete Calculator Using Concrete Mix in Bags
- Fencing an Area Measured in Miles
- Fencing a Rectangular Shaped Acreage
- Fencing a Square Shaped Acreage
- Picket, Pale Fence Materials (Imperial)
- Picket, Pale Fence Materials (Metric)
Pools & Ponds
Concrete Patio Calculators
- Rectangular Shaped Concrete Slab - Rectangular Shaped Pool - Imperial
- Rectangular Shaped Concrete Slab - Rectangular Shaped Pool - Metric
- Oval Shaped Concrete Slab - Oval Shaped Pool - Imperial
- Oval Shaped Concrete Slab - Oval Shaped Pool - Metric
- Rectangular Shaped Concrete Slab - Oval Shaped Pool - Imperial
- Rectangular Shaped Concrete Slab - Oval Shaped Pool - Metric
- Round Concrete Slab - Round Pool - Imperial
- Round Pool - Round Concrete Slab - Metric
- Square Rectangular Shaped Concrete Patio - Round Pool - Imperial
- Square Rectangular Shaped Concrete Patio - Round Pool - Metric
Excavation Calculators
Fill Time Calculators
Volume & Perimeter Calculators.
Fractions & Decimals
Calculators Using Mixed Numbers Fractions and Decimals
- Dividing Mixed Numbers
- Dividing With Fractions
- Fraction Addition
- Fraction Conversion and Simplification
- Fraction to Decimal
- Greatest Common Factor (GCF)
- Greatest Common Factor of Two Numbers
- Mixed Number
- Mixed Numbers and Decimals Addition
- Mixed Numbers and Fractions
- Mixed Number to Decimal
- Multiplying Fractions & Mixed Fractions
Calculators using Feet and Inches
- Feet and Inches Division
- Feet and Inches Division by a Single Number
- Feet and Inches Multiplication
- Feet and Inches Multiplication by a Single Number
- Feet and Inches Subtraction
- Foot and Inch to Decimal Format Conversion
- Two-Dimension Feet and Inches Addition
- Multiple Feet and Inches Addition
- Decimal Feet to Inches
- Decimal Inch and Foot Conversions
- Decimal Inch to Inch + Fraction Conversion
- Decimal Feet to Inches
- Decimal Inches to Feet and Inches
More Calculators
Costing
Costing Calculators
- Compare Electrical Cost for Similar Devices/Appliances
- Cost of Buying Fuel in Canada based on US Currency
- Cost of Buying Fuel in the US based on Canadian Currency
- Cost per Square Foot to Cost per Square Metre
- Cost per Square Metre to Cost per Square Foot
- Energy Cost for an Appliance Calculator
- Excavator/Tractor Fuel Consumption per Hour
- Fuel Economy Calculator
- Shower Water Usage - Gallons
- Shower Water Usage - Litres
- Total Cost From Square Foot Price / Square Foot Price from Total Cost
- Total Cost From Square Metre Price / Square Metre Price from Total Cost
- Unit Price Comparing
Fitness
Swimming Calculators
Conversions
Walking --- Running
Fuel and Distance
Fuel and Distance Calculators
- Distance from Speed and Time - Miles
- Distance from Speed and Time - Kilometres
- Average Speed from Distance in Kilometres and Time
- Average Speed in Kilometres per Hour
- Average Speed in Miles per Hour
- Bargain Hunting
- Cost of Buying Fuel in the US based on Canadian Currency
- Cost of Buying Fuel in Canada based on US Currency
- Cost of Charging the Battery of an Electric Vehicle (EV)
- Convert RPM to MPH
- Electric Vehicle VS Standard Gas Vehicle Fuel Cost
- Fuel Economy - Miles per Gallon
- Fuel Economy - Kilometres per Litre
- Gas Trip Calculator
- How Far Will One Dollar Get You
- Number of Kilometres from One Dollar
- Revolutions per Minute from Miles per Hour
- Trip Cost of Driving an Electric Vehicle
- When and Where will they Meet Travel Time and Distance Covered
Percentage
Percentage Calculators
- Discount in Percentages
- Elevation from Slope Percentage
- Fraction to Decimal and Percent
- Number of a Number Percentage
- Number to Percent
- Part-to-Whole Percentage
- Percent of a Percent
- Percent to Fraction
- Percentage Amount to a 100% Amount
- Percentage Amount from a Starting Amount
- Slope of a Driveway in a Percentage
- Surcharge in Percentages
Finance Calculators
Ring Sizes
- Ring size from a circumference measurement in inch and a fraction.
- Ring size from a circumference measurement in decimal inches.
- Ring size from a diameter measurement using decimal inches.
- Ring size from a diameter measurement using inch and a fraction.
- Ring size from a diameter measurement in millimetres.
- Ring size from a circumference measurement in millimetres.
- Diameter and the inside circumference measure in inches and millimetres from the size of the ring
- Ring Sizes
- Ring Sizes from Inside Diameter
- Ring Size from a Circumference Measurement