Convert any volume to floor area for a given depth: m³, cm³, mm³, dm³, L, ft³, in³, yd³, US/UK gal → m², cm², dm², mm², ft², in², yd².
Input
Resulting area
100.00 m²
A = V ÷ h = 10 m³ ÷ 0.1 m = 100 m²
Quick reference
1 m³ equals
Value
cubic decimetres (dm³)
1,000
litres (L)
1,000
cubic centimetres (cm³)
1,000,000
cubic millimetres (mm³)
1,000,000,000
cubic feet (ft³)
35.3147
cubic inches (in³)
61,023.7
cubic yards (yd³)
1.30795
US gallons
264.172
UK gallons
219.969
FAQ
When a volume V is spread evenly to a constant depth or thickness h, the floor area it covers is A = V ÷ h. The two values must use compatible units — this calculator converts every input to metres before dividing, so you can mix m³ with cm or ft³ with inches and the maths still works.
Pick the "Volume → Area" mode, enter the concrete volume you have ordered (for example 10 m³) and the slab thickness (for example 100 mm or 4 in). The calculator returns how much surface area that pour will cover. Use the reverse mode if you know the slab area and want to order the right volume of ready-mix.
Yes. For paint or sealer, enter the volume in litres or US gallons and the wet-film thickness in millimetres or thousandths of an inch — you get the area one coat will cover. For mulch, gravel or topsoil, enter cubic yards or cubic feet and the layer depth in inches; the result is the bed area covered.
1 cubic yard equals 27 cubic feet. Bagged products such as mulch are sold in cubic feet, while bulk deliveries (soil, gravel, concrete in the US) are usually quoted in cubic yards. The calculator converts both internally, so you can enter whichever unit your supplier uses.
Switch to the "Find Depth" tab. Enter the volume you have and the area you need to cover; the calculator returns the resulting depth using h = V ÷ A. Useful for working out how thick a screed will be when you pour a fixed bag of mortar over a known room.
Enter a volume and a depth or thickness — the calculator returns the equivalent floor area using A = V ÷ h. Switch the input unit between metric (m³, dm³, cm³, mm³, L, mL) and imperial (ft³, in³, yd³, US/UK gallon); the depth field accepts m, cm, mm or ft/in. Results appear in m², dm², cm², mm² and ft²/in²/yd² simultaneously, so a 6 yd³ truckload spread 6 in deep returns about 36 m² (or 388 ft²). A reverse mode multiplies area × depth back to volume, useful for estimating concrete, mulch, sand, paint coverage and pool fill needs. Built-in presets cover slab pours, pool filling, coating coverage and aquarium sizing.