Convert Megalitres to Gigalitres (ML to GL)
1 megalitre (ML) = 0.001 gigalitres (GL). 1 GL = 1000 ML. Example: 15 ML = 15 × 0.001 = 0.015 GL.
Also searched as megalitres to GL, megalitres in GL, megalitres into gigalitres, ML to GL, ML in gigalitres, ML into gigalitre, megalitre to gigalitre, ML to gigalitres converter, megaliters to gigaliters and how many gigalitres in a megalitre.
1 ML = 0.001 GL
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk megalitre to gigalitre converter to paste a column from Excel.
How to Convert Megalitre to Gigalitre
- 1 ML = 0.001 GL
- 1 GL = 1000 ML
- Example: convert 15 ML to GL: 15 ML = 15 × 0.001 GL = 0.015 GL
Formula
GL = ML ÷ 1000
Derivation from SI units:
- 1 ML = 10⁶ L = 1000 m³.
- 1 GL = 10⁹ L = 10⁶ m³ = 1 MCM.
- 1 ML = 0.001 MCM ÷ 1 MCM per GL = 0.001 GL
Both units are defined exactly, so the factor is exact. Megalitre definition: megalitre; Gigalitre definition: gigalitre.
Worked examples
- A reading of 50 ML converts to 0.05 GL.
50 ML × 0.001 = 0.05 GL - A value of 1000 ML is 1 GL.
1000 ML × 0.001 = 1 GL
Megalitre to Gigalitre conversion table
| Megalitres (ML) | Gigalitres (GL) |
|---|---|
| 1 ML | 0.001 GL |
| 5 ML | 0.005 GL |
| 10 ML | 0.01 GL |
| 50 ML | 0.05 GL |
| 100 ML | 0.1 GL |
| 500 ML | 0.5 GL |
| 1000 ML | 1 GL |
| 5000 ML | 5 GL |
| 10000 ML | 10 GL |
| 100000 ML | 100 GL |
Where it's used
Megalitres are used for australian water entitlements, 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.
Megalitre to other water volume units
| Conversion | 1 ML equals |
|---|---|
| megalitre to gigalitre | 0.001 GL |
| megalitre to MCM | 0.001 MCM |
| megalitre to BCM | 0.000001 BCM |
| megalitre to TMC | 0.00003531466672 TMC |
| megalitre to acre-foot | 0.8107131938 acre-ft |
| megalitre to cubic metre | 1000 m³ |
| megalitre to Mcft | 0.03531466672 Mcft |
| megalitre to MAF | 8.107131938 × 10⁻⁷ MAF |
Show 2 more units
| megalitre to hectare-metre | 0.1 ha·m |
|---|---|
| megalitre to cubic kilometre | 0.000001 km³ |
Frequently asked questions
How many gigalitres are in 1 megalitre?
1 ML = 0.001 GL.
How do I convert megalitres to gigalitres?
Multiply the value in ML by 0.001, or divide it by 1000. For example, 15 ML × 0.001 = 0.015 GL.
Is the ML to GL conversion exact?
Yes. Both units are defined exactly, and 1 ML is exactly 0.001 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 Megalitres to Gigalitres (ML to GL). Retrieved October 29, 2026, from https://scientificconverters.com/water-volume/megaliters-to-gigaliters/
IEEE
Scientific Converters, "Convert Megalitres to Gigalitres (ML to GL)," scientificconverters.com. Accessed: Oct. 29, 2026. [Online]. Available: https://scientificconverters.com/water-volume/megaliters-to-gigaliters/