Acre-feet to cubic meters
Type a value in acre-feet to see it in cubic meters straight away, or type in the second box to convert back.
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How to use it
- Type the value in the acre-feet box.
- Read the result in cubic meters as you type, and pick the precision you need.
- Swap the direction to convert back, or copy the result.
How it is calculated
m³ = ac·ft × 1,233.481838
Multiply the value in acre-feet by 1,233.481838 to get cubic meters.
Example
To convert 25 ac·ft to cubic meters: 25 × 1,233.481838 = 30,837 m³.
Conversion table
| Acre-feet (ac·ft) | Cubic meters (m³) |
|---|---|
| 1 | 1,233.48 |
| 2 | 2,466.96 |
| 3 | 3,700.45 |
| 5 | 6,167.41 |
| 10 | 12,334.8 |
| 20 | 24,669.6 |
| 25 | 30,837 |
| 50 | 61,674.1 |
| 100 | 123,348 |
| 250 | 308,370 |
| 500 | 616,741 |
| 1,000 | 1,233,480 |
About the units
- Acre-foot
- The acre-foot is the water that covers one acre to a depth of one foot: 43560 cubic feet or 1233.48183754752 cubic meters.
- Cubic meter
- The cubic meter is the SI unit of volume, a cube one meter on each side, equal to exactly 1000 liters.
Limits and caveats
- Results are rounded for display and computed with the browser's floating point precision (about 15 significant digits).
- Both unit factors are exact by their official definitions.
Questions about this tool
How many cubic meters are in one acre-foot?
1 ac·ft = 1,233.48 m³ exactly.
How do I convert acre-feet to cubic meters?
Use m³ = ac·ft × 1,233.481838. For example, 25 ac·ft = 30,837 m³.
How many acre-feet are in one cubic meter?
1 m³ = 0.000810713 ac·ft.
What is the difference between a US gallon and an imperial gallon?
A US gallon is 3.785411784 liters and the imperial gallon used in the UK is 4.54609 liters, about 20% larger. Check where a figure comes from before converting, since US sources mean the US gallon.
How many milliliters are in a cup?
The US customary cup used in recipes is 236.5882365 mL and the metric cup is 250 mL. US nutrition labels round the cup to 240 mL, so the figure differs slightly between sources.