Convert Acre-feet to Gigalitres (acre-ft to GL)
1 acre-foot (acre-ft) = 0.001233481838 gigalitres (GL). 1 GL = 810.7131938 acre-ft. Example: 15 acre-ft = 15 × 0.001233481838 = 0.01850222756 GL.
Also searched as acre-feet to GL, acre-feet in GL, acre-feet into gigalitres, acre-ft to GL, acre-ft in gigalitres, acre-ft into gigalitre, acre-foot to gigalitre, acre-ft to gigalitres converter, acre-feet to gigaliters and how many gigalitres in an acre-foot.
1 acre-ft = 0.001233481838 GL
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk acre-foot to gigalitre converter to paste a column from Excel.
How to Convert Acre-foot to Gigalitre
- 1 acre-ft = 0.001233481838 GL
- 1 GL = 810.7131938 acre-ft
- Example: convert 15 acre-ft to GL: 15 acre-ft = 15 × 0.001233481838 GL = 0.01850222756 GL
Formula
GL = acre-ft × 0.001233481837548
or GL = acre-ft ÷ 810.7131937899
Derivation from SI units:
- 1 acre-foot = 43,560 ft³ = 1233.48183754752 m³.
- 1 GL = 10⁹ L = 10⁶ m³ = 1 MCM.
- 1 acre-ft = 0.001233481837548 MCM ÷ 1 MCM per GL = 0.001233481837548 GL
Both units are defined exactly, so the factor is exact. Acre-foot definition: acre-foot; Gigalitre definition: gigalitre.
Worked examples
- A reading of 1000 acre-ft converts to 1.233481838 GL.
1000 acre-ft × 0.001233481838 = 1.233481838 GL - A value of 500000 acre-ft is 616.7409188 GL.
500000 acre-ft × 0.001233481838 = 616.7409188 GL
Acre-foot to Gigalitre conversion table
| Acre-feet (acre-ft) | Gigalitres (GL) |
|---|---|
| 1 acre-ft | 0.001233481838 GL |
| 10 acre-ft | 0.01233481838 GL |
| 100 acre-ft | 0.1233481838 GL |
| 1000 acre-ft | 1.233481838 GL |
| 10000 acre-ft | 12.33481838 GL |
| 100000 acre-ft | 123.3481838 GL |
| 500000 acre-ft | 616.7409188 GL |
| 1000000 acre-ft | 1233.481838 GL |
| 5000000 acre-ft | 6167.409188 GL |
| 26000000 acre-ft | 32070.52778 GL |
Where it's used
Acre-feet are used for US reservoir capacity and water rights, while gigalitres appear in australian dam storage. 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 gigalitre | 0.001233481838 GL |
| 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 MAF | 0.000001 MAF |
| acre-foot to hectare-metre | 0.1233481838 ha·m |
Show 2 more units
| acre-foot to megalitre | 1.233481838 ML |
|---|---|
| acre-foot to cubic kilometre | 0.000001233481838 km³ |
Frequently asked questions
How many gigalitres are in 1 acre-foot?
1 acre-ft = 0.001233481838 GL.
How do I convert acre-feet to gigalitres?
Multiply the value in acre-ft by 0.001233481838, or divide it by 810.7131938. For example, 15 acre-ft × 0.001233481838 = 0.01850222756 GL.
Is the acre-ft to GL 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 Gigalitres (acre-ft to GL). Retrieved October 29, 2026, from https://scientificconverters.com/water-volume/acre-feet-to-gigaliters/
IEEE
Scientific Converters, "Convert Acre-feet to Gigalitres (acre-ft to GL)," scientificconverters.com. Accessed: Oct. 29, 2026. [Online]. Available: https://scientificconverters.com/water-volume/acre-feet-to-gigaliters/