Convert Acre-feet to MAF (acre-ft to MAF)
1 acre-foot (acre-ft) = 0.000001 million acre-feet (MAF). 1 MAF = 1000000 acre-ft. Example: 15 acre-ft = 15 × 0.000001 = 0.000015 MAF.
Also searched as acre-feet to MAF, acre-feet in MAF, acre-feet into million acre-feet, acre-ft to MAF, acre-ft in million acre-feet, acre-ft into million acre-feet, acre-foot to million acre-feet, acre-ft to million acre-feet converter and how many million acre-feet in an acre-foot.
1 acre-ft = 0.000001 MAF
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk acre-foot to MAF converter to paste a column from Excel.
How to Convert Acre-foot to MAF
- 1 acre-ft = 0.000001 MAF
- 1 MAF = 1000000 acre-ft
- Example: convert 15 acre-ft to MAF: 15 acre-ft = 15 × 0.000001 MAF = 0.000015 MAF
Formula
MAF = acre-ft ÷ 1000000
Derivation from SI units:
- 1 acre-foot = 43,560 ft³ = 1233.48183754752 m³.
- 1 MAF = 10⁶ acre-feet = 1233.48 MCM.
- 1 acre-ft = 0.001233481837548 MCM ÷ 1233.481837548 MCM per MAF = 0.000001 MAF
Both units are defined exactly, so the factor is exact. Acre-foot definition: acre-foot; MAF definition: million acre-feet.
Worked examples
- A reading of 1000 acre-ft converts to 0.001 MAF.
1000 acre-ft × 0.000001 = 0.001 MAF - A value of 500000 acre-ft is 0.5 MAF.
500000 acre-ft × 0.000001 = 0.5 MAF
Acre-foot to MAF conversion table
| Acre-feet (acre-ft) | MAF |
|---|---|
| 1 acre-ft | 0.000001 MAF |
| 10 acre-ft | 0.00001 MAF |
| 100 acre-ft | 0.0001 MAF |
| 1000 acre-ft | 0.001 MAF |
| 10000 acre-ft | 0.01 MAF |
| 100000 acre-ft | 0.1 MAF |
| 500000 acre-ft | 0.5 MAF |
| 1000000 acre-ft | 1 MAF |
| 5000000 acre-ft | 5 MAF |
| 26000000 acre-ft | 26 MAF |
Where it's used
Acre-feet are used for US reservoir capacity and water rights, while million acre-feet appear in indus Waters Treaty and Pakistan IRSA accounts. Both measure volume of stored or released water (reservoirs, river flows, allocations), so the conversion is a fixed factor.
Acre-foot to other water volume units
| Conversion | 1 acre-ft equals |
|---|---|
| acre-foot to MAF | 0.000001 MAF |
| acre-foot to MCM | 0.001233481838 MCM |
| acre-foot to BCM | 0.000001233481838 BCM |
| acre-foot to TMC | 0.00004356 TMC |
| acre-foot to cubic metre | 1233.481838 m³ |
| acre-foot to Mcft | 0.04356 Mcft |
| 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 million acre-feet are in 1 acre-foot?
1 acre-ft = 0.000001 MAF.
How do I convert acre-feet to million acre-feet?
Multiply the value in acre-ft by 0.000001, or divide it by 1000000. For example, 15 acre-ft × 0.000001 = 0.000015 MAF.
Is the acre-ft to MAF conversion exact?
Yes. Both units are defined exactly, and 1 acre-ft is exactly 0.000001 MAF.
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".
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 MAF (acre-ft to MAF). Retrieved October 29, 2026, from https://scientificconverters.com/water-volume/acre-feet-to-maf/
IEEE
Scientific Converters, "Convert Acre-feet to MAF (acre-ft to MAF)," scientificconverters.com. Accessed: Oct. 29, 2026. [Online]. Available: https://scientificconverters.com/water-volume/acre-feet-to-maf/