Firewood volume converter

Timber is measured in three units: a solid m³ (tihumeeter, tm) is 1 m³ of solid wood with no gaps; a stacked m³ (ruummeeter, rm) is neatly stacked split logs (~70% wood); a loose m³ (kallatud, lm) is dumped logs (~45% wood). Factors used: 1 rm ≈ 0.70 tm, 1 lm ≈ 0.45 tm – approximate and dependent on species, log size and stacking.