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Topsoil Calculator

The topsoil for a lawn or bed, in cubic metres or yards and by weight.

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Result…

Units
m
m
cm
t/m³

Loose topsoil is about 1.2–1.4 t/m³ (more when wet).

 

…

How it's calculated

Volume = length × width × depth
Weight = volume × density
1 cubic yard = 27 ft³

Works out the topsoil to fill an area to a given depth, as a volume and a weight. About 10–15 cm (4–6 in) is usual for a new lawn, more for beds. Soil settles, so add 10–20% if you are filling to a finished level.

Your numbers, step by step

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