Square feet to cubic meter · Updated
Square Feet to Cubic Meter Calculator
Multiply floor area by a stated uniform height to estimate rectangular volume. Enter square feet and height in feet to obtain cubic metres, cubic feet, and litres; the result does not size building systems.
Area to volume calculator
Formulas: ft³ = ft² × height (ft); m³ = ft³ ÷ 35.3147; Litres = m³ × 1000.
Example scenarios
| Area (ft²) | Height (ft) | Volume (ft³) | Volume (m³) |
|---|---|---|---|
| 120 | 8 | 960 | 27.18 |
| 220 | 9.5 | 2090 | 59.18 |
| 48 | 6 | 288 | 8.16 |
Use the m³ to ft² converter when you have volume first.
Planning tips
Convert uneven heights
Split stepped spaces into nonoverlapping areas with their own heights, calculate each volume, and add the results. An average height must be weighted by the corresponding area.
Feed into pallet calculators
Use measured load dimensions in the pallet cube calculator. A room volume alone does not determine pallet fit or weight distribution.
Keep unit consistency
Area must be in square feet and height in feet. Convert each quantity with its own area or length factor; the same linear factor cannot convert both.
FAQ
How do I convert inches to feet before using this tool?
Divide inches by 12 to convert to feet, then enter the values above.
Can I get the answer in cubic feet as well?
Yes. The calculator outputs cubic feet alongside cubic meters so you can double-check both units.
Combine an imperial floor drawing with a height record
A floor drawing may label a region as 120 square feet while a measurement note gives an eight-foot height. Multiplying them gives 960 cubic feet of rectangular volume. This page then changes that volume into cubic metres and litres. Height is essential: square feet alone describe area, not a room volume. The result is a geometric estimate of the stated envelope, not an HVAC calculation, available pallet capacity, or a building-system specification.
Both inputs must use their labelled units. Area is in square feet; height is in feet. A note saying 96 inches should become eight feet before entry. A height of 2.4384 metres is also eight feet, but typing 2.4384 into the height field would mean that many feet and calculate a much smaller region. The form cannot identify a mislabeled input from its magnitude.
Compare the exact definition with the current script
NIST's international-foot definition is exactly 0.3048 metre. Cubing that relationship gives 0.028316846592 cubic metre per cubic foot. The definition-based result for 960 cubic feet is therefore 27.18417272832 cubic metres.
The current inline tool divides cubic feet by the approximate reciprocal 35.3147. Its internal result for 960 is about 27.184147112 cubic metres, displayed as 27.184. It displays cubic feet to two decimals and litres to a whole number, so the three outputs are 960.00 ft³, 27.184 m³, and 27184 L. The definition-based value rounds to the same three-decimal cubic-metre display in this example.
| Area | Height | ft³ | Definition-based m³ | Current m³ display |
|---|---|---|---|---|
| 120 ft² | 8 ft | 960 | 27.18417272832 | 27.184 |
| 120 ft² | 6 ft | 720 | 20.38812954624 | 20.388 |
The height comparison holds the floor region fixed. Reducing height from eight to six feet reduces the calculated volume by one quarter. It does not say that either height is usable for cargo. Obtain the applicable physical restriction from the responsible operation, and keep aisles and inaccessible regions separate from a nominal floor allocation.
Calculate unequal zones with area weights
Suppose a fictional stepped region contains 100 square feet at eight feet high and twenty square feet at twelve feet high. The two volumes are 800 and 240 cubic feet, totaling 1040. Their total area is 120 square feet. An area-weighted effective height is 1040 divided by 120, about 8.666667 feet. The simple average of eight and twelve is ten and would produce 1200 cubic feet, overstating this example.
Calculate each nonoverlapping region separately whenever its height differs. Keep the region boundaries and areas with the total. A mezzanine or opening requires a clear geometric definition to prevent counting the same space twice. Neither a simple height average nor a single rectangular room volume can automatically account for columns, sloped boundaries, access, or equipment occupying the region.
Reverse the calculation with consistent units
For an exact-definition reverse check, divide 27.18417272832 cubic metres by 0.028316846592 to recover 960 cubic feet, then divide by eight feet to recover 120 square feet. To reverse the script's unrounded value, multiply by 35.3147 instead. Starting with the displayed 27.184 loses some information, so the recovered area can differ slightly.
The volume-to-square-feet tool expects height in metres. Convert the eight-foot height to 2.4384 metres before using that reverse page. Merely carrying the number eight between differently labelled height fields changes the physical assumption. Retain both the original measurement and the conversion applied to it.
Distinguish a room envelope from a load envelope
A room's rectangular volume can include space above aisles and between loads. A sum of finished pallet cubes can include pallet-base regions and voids inside each outer rectangle. Those two totals describe different objects. Being smaller than the room's volume does not prove the loads fit its floor or pass its door. Record dimensions per load and use a layout model for positions.
The litre output is an equivalent volume unit, not a measured liquid capacity. It does not imply that the region can be filled or that its contents have a particular mass. Geometry cannot determine weight distribution, structural support, or a permissible load. Use the weight calculator only with separately supplied component masses and numeric limits.
Save the input fields with the result
The current script resets all outputs to zero unless both parsed inputs are positive. Blank height, negative area, and a true zero-volume assumption can therefore produce the same visible initial output. Small positive volumes can also round to zero in a selected display. Check the input record before interpreting that number as a measurement.
Save region area 120 ft², height eight ft, geometric product 960 ft³, script factor 35.3147, and displayed 27.184 m³. Add region definitions and measurement basis. Copy link shares this page address without the field values. If the floor drawing is already metric, use the metric-area tool; if all three lengths are measured, use the dimensions tool. Each route should describe the same chosen envelope after its units are reconciled.