Spike's Calculators

Barrel Volume and Surface Area - Centimetres


Calculate the volume and surface area of a barrel. This calculator uses centimetres for measurements.

Barrels usually have rims (chimes) on the top and bottom.

The barrel's volume is calculated from inside measurements, and you must deduct the rims from your height measurement. The same applies to the surface area. Calculating the surface area, you must subtract the rim(s) from the height measurement.

Approximate weight of Fuel or Water
one litre of water = 1 kilogram
one litre of diesel fuel = 0.832 kilogram
one litre of gas = 0.75 kilogram

Barrel - Centimetres

Top Diameter cm
Mid Diameter cm
Barrel Height cm
Liquid Weight-Kilograms per Litre kg/L


Tank Volume
In Cubic Centimetres cm³
In Cubic Metres
In Cubic Inches in³
In Cubic Feet ft³
Tank Capacity
In Centilitres cl
In Litres L
In US Gallons gal US
In Imperial Gallons gal Imperial
Liquid Weight and Surface Area
Weight of Liquid kg
Surface Area in Square Centimetres cm²
Surface Area in Square Metres
Surface Area in Square Inches in²
Surface Area in Square Feet ft²


  1. the barrels' top diameter in centimetres
  2. the mid diameter in centimetres
  3. the height of the barrel in centimetres(without the rims)
  4. the weight of the liquid in kilograms per litre


  1. the volume of the tank in cubic centimetres
  2. the volume in cubic metres
  3. the volume in cubic inches
  4. the volume in cubic feet
  5. the capacity of the tank in centilitres
  6. the capacity in litres
  7. the capacity in US gallons
  8. the capacity in Imperial gallons
  9. full tank liquid weight based on kilograms/L
  10. the surface area of the tank in square centimetres
  11. surface area in square metres
  12. surface area in square inches
  13. surface area in square feet

V = 𝝅H/15(3T²+8M²+4TM)
where V is the volume of the cone
𝝅 = 3.14159265
T the  top diameter divided by 2
M the mid diameter divided by 2
H the height of the barrel
one cubic centimetre (cm³) = 0.1 centilitres (cl)
one cubic centimetre (cm³) = 0.001 litres (L)
one cubic centimetre (cm³) = 0.000001 cubic metres (m³)
one cubic centimetre (cm³) = 0.000264172052358148 gallons (gal) US
one cubic centimetre (cm³) = 0.0610237440947323 cubic inches (in³)
one cubic centimetre (cm³) = 0.0000353146667214886 cubic feet (ft³)
one cubic centimetre (cm³) = 0.000264172052358148 gallons (gal) US
one cubic centimetre (cm³) = 0.000219969248299088 gallons (gal) Imperial
one square centimetre (cm²) = 0.0001 square metres (m²)
one square centimetre (cm²) = 0.15500031000062 square inches (in²)
one square centimetre (cm²) = 0.00107639104167097 square feet (ft²)
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