Convert Acre-feet to Cubic Metres (acre-ft to m3)
1 acre-foot (acre-ft) = 1233.481838 cubic metres (m³). 1 m³ = 0.0008107131938 acre-ft. Example: 1 acre-ft = 1 × 1233.481838 = 1233.481838 m³.
Also searched as acre feet to cubic meters, acre-ft to m3, af to m³ and acre foot to cubic metres.
1 acre-ft = 1233.481838 m³
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk acre-foot to cubic metre converter to paste a column from Excel.
How to Convert Acre-foot to Cubic Metre
- 1 acre-ft = 1233.481838 m³
- 1 m³ = 0.0008107131938 acre-ft
- Example: convert 1 acre-ft to m³: 1 acre-ft = 1 × 1233.481838 m³ = 1233.481838 m³
Formula
m³ = acre-ft × 1233.481837548
Derivation from SI units:
- 1 acre-foot = 43,560 ft³ = 1233.48183754752 m³.
- 1 m³ = 10⁻⁶ MCM.
- 1 acre-ft = 0.001233481837548 MCM ÷ 0.000001 MCM per m³ = 1233.481837548 m³
Both units are defined exactly, so the factor is exact. Acre-foot definition: acre-foot; Cubic Metre definition: cubic metre.
Worked examples
- 1 acre-ft is 1233.481838 m³.
1 acre-ft × 1233.481838 = 1233.481838 m³ - An allocation of 1000 acre-ft is 1233481.838 m³.
1000 acre-ft × 1233.481838 = 1233481.838 m³
Acre-foot to Cubic Metre conversion table
| Acre-feet (acre-ft) | Cubic Metres (m³) |
|---|---|
| 1 acre-ft | 1233.481838 m³ |
| 10 acre-ft | 12334.81838 m³ |
| 100 acre-ft | 123348.1838 m³ |
| 1000 acre-ft | 1233481.838 m³ |
| 10000 acre-ft | 12334818.38 m³ |
| 100000 acre-ft | 123348183.8 m³ |
| 500000 acre-ft | 616740918.8 m³ |
| 1000000 acre-ft | 1233481838 m³ |
| 5000000 acre-ft | 6167409188 m³ |
| 26000000 acre-ft | 32070527780 m³ |
Where it's used
US reservoir volumes and water rights in acre-feet are converted to cubic metres. 1 acre-foot = 1233.48 m³.
Acre-foot to other water volume units
| Conversion | 1 acre-ft equals |
|---|---|
| acre-foot to cubic metre | 1233.481838 m³ |
| acre-foot to MCM | 0.001233481838 MCM |
| acre-foot to BCM | 0.000001233481838 BCM |
| acre-foot to TMC | 0.00004356 TMC |
| acre-foot to Mcft | 0.04356 Mcft |
| acre-foot to MAF | 0.000001 MAF |
| acre-foot to hectare-metre | 0.1233481838 ha·m |
| acre-foot to megalitre | 1.233481838 ML |
Show 2 more units
| acre-foot to cubic kilometre | 0.000001233481838 km³ |
|---|---|
| acre-foot to gigalitre | 0.001233481838 GL |
Frequently asked questions
How many cubic metres is an acre-foot?
1 acre-foot = 1233.481838 m³: 43,560 ft³.
How much water is an acre-foot?
Enough to cover an acre one foot deep, roughly what two or three US households use in a year.
How many cubic metres are in 1 acre-foot?
1 acre-ft = 1233.481838 m³.
How do I convert acre-feet to cubic metres?
Multiply the value in acre-ft by 1233.481838. For example, 1 acre-ft × 1233.481838 = 1233.481838 m³.
Is the acre-ft to m³ conversion exact?
Yes. Both units are defined exactly, so the ratio is exact; its decimal form does not terminate and is shown here to 10 significant figures (more with the precision selector).
Sources
- Guide for the Use of the International System of Units (SI), NIST Special Publication 811, 2008 Edition, National Institute of Standards and Technology , Appendix B.8, "acre-foot".
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 4 (derived units) and Table 8 (non-SI units accepted for use with the SI).
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Convert Acre-feet to Cubic Metres (acre-ft to m3). Retrieved October 29, 2026, from https://scientificconverters.com/water-volume/acre-feet-to-cubic-meters/
IEEE
Scientific Converters, "Convert Acre-feet to Cubic Metres (acre-ft to m3)," scientificconverters.com. Accessed: Oct. 29, 2026. [Online]. Available: https://scientificconverters.com/water-volume/acre-feet-to-cubic-meters/