Spike's Calculators

Looking at specific gravity values for tree species in various publications, to say the least, can be very confusing. For the average person to actually measure it correctly is out of the question. Using a formula, unless you know the exact moisture content (mc), shrinkage (s) and the the fiber saturation point (fsp) of the species can be a guessing game.

To keep it simple, the following calculators all use preset values for fsp, s, and mc values. The result will give you a close average value you are calculating for.

Basic Specific Gravity = ovendry mass/green volume

For all the other specific gravity values you have to read and understand what it says.

- 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