Convert Hectare-metres to Gigalitres (ha-m to GL)
1 hectare-metre (ha·m) = 0.01 gigalitres (GL). 1 GL = 100 ha·m. Example: 15 ha·m = 15 × 0.01 = 0.15 GL.
Also searched as hectare-metres to GL, hectare-metres in GL, hectare-metres into gigalitres, ha-m to GL, ha-m in gigalitres, ha-m into gigalitre, hectare-metre to gigalitre, ha-m to gigalitres converter, hectare-meters to gigaliters and how many gigalitres in a hectare-metre.
1 ha·m = 0.01 GL
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk hectare-metre to gigalitre converter to paste a column from Excel.
How to Convert Hectare-metre to Gigalitre
- 1 ha·m = 0.01 GL
- 1 GL = 100 ha·m
- Example: convert 15 ha·m to GL: 15 ha·m = 15 × 0.01 GL = 0.15 GL
Formula
GL = ha·m ÷ 100
Derivation from SI units:
- 1 ha·m = 10,000 m² × 1 m = 10⁴ m³ = 0.01 MCM.
- 1 GL = 10⁹ L = 10⁶ m³ = 1 MCM.
- 1 ha·m = 0.01 MCM ÷ 1 MCM per GL = 0.01 GL
Both units are defined exactly, so the factor is exact. Hectare-metre definition: hectare-metre; Gigalitre definition: gigalitre.
Worked examples
- A reading of 100 ha·m converts to 1 GL.
100 ha·m × 0.01 = 1 GL - A value of 5000 ha·m is 50 GL.
5000 ha·m × 0.01 = 50 GL
Hectare-metre to Gigalitre conversion table
| Hectare-metres (ha·m) | Gigalitres (GL) |
|---|---|
| 1 ha·m | 0.01 GL |
| 10 ha·m | 0.1 GL |
| 50 ha·m | 0.5 GL |
| 100 ha·m | 1 GL |
| 500 ha·m | 5 GL |
| 1000 ha·m | 10 GL |
| 5000 ha·m | 50 GL |
| 10000 ha·m | 100 GL |
| 50000 ha·m | 500 GL |
| 100000 ha·m | 1000 GL |
Where it's used
Hectare-metres are used for crop water requirement and duty–delta problems, 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.
Hectare-metre to other water volume units
| Conversion | 1 ha·m equals |
|---|---|
| hectare-metre to gigalitre | 0.01 GL |
| hectare-metre to MCM | 0.01 MCM |
| hectare-metre to BCM | 0.00001 BCM |
| hectare-metre to TMC | 0.0003531466672 TMC |
| hectare-metre to acre-foot | 8.107131938 acre-ft |
| hectare-metre to cubic metre | 10000 m³ |
| hectare-metre to Mcft | 0.3531466672 Mcft |
| hectare-metre to MAF | 0.000008107131938 MAF |
Show 2 more units
| hectare-metre to megalitre | 10 ML |
|---|---|
| hectare-metre to cubic kilometre | 0.00001 km³ |
Frequently asked questions
How many gigalitres are in 1 hectare-metre?
1 ha·m = 0.01 GL.
How do I convert hectare-metres to gigalitres?
Multiply the value in ha·m by 0.01, or divide it by 100. For example, 15 ha·m × 0.01 = 0.15 GL.
Is the ha·m to GL conversion exact?
Yes. Both units are defined exactly, and 1 ha·m is exactly 0.01 GL.
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).
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 Hectare-metres to Gigalitres (ha-m to GL). Retrieved October 29, 2026, from https://scientificconverters.com/water-volume/hectare-meters-to-gigaliters/
IEEE
Scientific Converters, "Convert Hectare-metres to Gigalitres (ha-m to GL)," scientificconverters.com. Accessed: Oct. 29, 2026. [Online]. Available: https://scientificconverters.com/water-volume/hectare-meters-to-gigaliters/