Convert Cubic Kilometres to MAF (km3 to MAF)
1 cubic kilometre (km³) = 0.8107131938 million acre-feet (MAF). 1 MAF = 1.233481838 km³. Example: 15 km³ = 15 × 0.8107131938 = 12.16069791 MAF.
Also searched as cubic kilometres to MAF, cubic kilometres in MAF, cubic kilometres into million acre-feet, km3 to MAF, km3 in million acre-feet, km3 into million acre-feet, cubic kilometre to million acre-feet, km3 to million acre-feet converter, cubic kilometers to million acre-feet and how many million acre-feet in a cubic kilometre.
1 km³ = 0.8107131938 MAF
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk cubic kilometre to MAF converter to paste a column from Excel.
How to Convert Cubic Kilometre to MAF
- 1 km³ = 0.8107131938 MAF
- 1 MAF = 1.233481838 km³
- Example: convert 15 km³ to MAF: 15 km³ = 15 × 0.8107131938 MAF = 12.16069791 MAF
Formula
MAF = km³ × 0.8107131937899
or MAF = km³ ÷ 1.233481837548
Derivation from SI units:
- 1 km³ = 10⁹ m³ = 1 BCM.
- 1 MAF = 10⁶ acre-feet = 1233.48 MCM.
- 1 km³ = 1000 MCM ÷ 1233.481837548 MCM per MAF = 0.8107131937899 MAF
Both units are defined exactly, so the factor is exact. Cubic Kilometre definition: cubic kilometre; MAF definition: million acre-feet.
Worked examples
- A reading of 10 km³ converts to 8.107131938 MAF.
10 km³ × 0.8107131938 = 8.107131938 MAF - A value of 500 km³ is 405.3565969 MAF.
500 km³ × 0.8107131938 = 405.3565969 MAF
Cubic Kilometre to MAF conversion table
| Cubic Kilometres (km³) | MAF |
|---|---|
| 0.1 km³ | 0.08107131938 MAF |
| 1 km³ | 0.8107131938 MAF |
| 5 km³ | 4.053565969 MAF |
| 10 km³ | 8.107131938 MAF |
| 50 km³ | 40.53565969 MAF |
| 100 km³ | 81.07131938 MAF |
| 500 km³ | 405.3565969 MAF |
| 1000 km³ | 810.7131938 MAF |
| 4000 km³ | 3242.852775 MAF |
| 10000 km³ | 8107.131938 MAF |
Where it's used
Cubic Kilometres are used for global water budgets, 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.
Cubic Kilometre to other water volume units
| Conversion | 1 km³ equals |
|---|---|
| cubic kilometre to MAF | 0.8107131938 MAF |
| cubic kilometre to MCM | 1000 MCM |
| cubic kilometre to BCM | 1 BCM |
| cubic kilometre to TMC | 35.31466672 TMC |
| cubic kilometre to acre-foot | 810713.1938 acre-ft |
| cubic kilometre to cubic metre | 1000000000 m³ |
| cubic kilometre to Mcft | 35314.66672 Mcft |
| cubic kilometre to hectare-metre | 100000 ha·m |
Show 2 more units
| cubic kilometre to megalitre | 1000000 ML |
|---|---|
| cubic kilometre to gigalitre | 1000 GL |
Frequently asked questions
How many million acre-feet are in 1 cubic kilometre?
1 km³ = 0.8107131938 MAF.
How do I convert cubic kilometres to million acre-feet?
Multiply the value in km³ by 0.8107131938, or divide it by 1.233481838. For example, 15 km³ × 0.8107131938 = 12.16069791 MAF.
Is the km³ to MAF 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
- 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).
- 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 Cubic Kilometres to MAF (km3 to MAF). Retrieved October 29, 2026, from https://scientificconverters.com/water-volume/cubic-kilometers-to-maf/
IEEE
Scientific Converters, "Convert Cubic Kilometres to MAF (km3 to MAF)," scientificconverters.com. Accessed: Oct. 29, 2026. [Online]. Available: https://scientificconverters.com/water-volume/cubic-kilometers-to-maf/