Convert MGD to MLD
1 million US gallons per day (MGD) = 3.785411784 million litres per day (MLD). 1 MLD = 0.2641720524 MGD. Example: 1 MGD = 1 × 3.785411784 = 3.785411784 MLD.
Also searched as MGD to MLD, million gallons per day to million litres per day.
1 MGD = 3.785411784 MLD
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk MGD to MLD converter to paste a column from Excel.
How to Convert MGD to MLD
- 1 MGD = 3.785411784 MLD
- 1 MLD = 0.2641720524 MGD
- Example: convert 1 MGD to MLD: 1 MGD = 1 × 3.785411784 MLD = 3.785411784 MLD
Formula
MLD = MGD × 3.785411784
Derivation from SI units:
- 1 MGD = 10⁶ × 3.785411784 L per day ≈ 0.0438 m³/s.
- 1 MLD = 10⁶ L/day = 1000 m³/day = 1000/86,400 m³/s.
- 1 MGD = 0.04381263638889 m³/s ÷ 0.01157407407407 m³/s per MLD = 3.785411784 MLD
Both units are defined exactly, so the factor is exact. MGD definition: million US gallons per day; MLD definition: million litres per day.
Worked examples
- 1 MGD is 3.785411784 MLD.
1 MGD × 3.785411784 = 3.785411784 MLD - A plant of 10 MGD is 37.85411784 MLD.
10 MGD × 3.785411784 = 37.85411784 MLD
MGD to MLD conversion table
| MGD | MLD |
|---|---|
| 0.5 MGD | 1.892705892 MLD |
| 1 MGD | 3.785411784 MLD |
| 2 MGD | 7.570823568 MLD |
| 5 MGD | 18.92705892 MLD |
| 10 MGD | 37.85411784 MLD |
| 20 MGD | 75.70823568 MLD |
| 50 MGD | 189.2705892 MLD |
| 100 MGD | 378.5411784 MLD |
| 500 MGD | 1892.705892 MLD |
| 1000 MGD | 3785.411784 MLD |
Where it's used
US plant capacities in MGD are converted to MLD for international and Indian comparisons. Multiply by 3.785411784.
MGD to other water discharge units
| Conversion | 1 MGD equals |
|---|---|
| MGD to MLD | 3.785411784 MLD |
| MGD to cumec | 0.04381263639 m³/s |
| MGD to cusec | 1.547228652 ft³/s |
| MGD to litre per second | 43.81263639 L/s |
| MGD to cubic metre per day | 3785.411784 m³/day |
| MGD to MGD (imp) | 0.8326741846 MGD (imp) |
| MGD to acre-foot per day | 3.068883277 acre-ft/day |
Frequently asked questions
How many MLD is 1 MGD?
1 MGD (US) = 3.785411784 MLD; an imperial MGD is 4.546 MLD.
How many million litres per day are in 1 million US gallons per day?
1 MGD = 3.785411784 MLD.
How do I convert million US gallons per day to million litres per day?
Multiply the value in MGD by 3.785411784. For example, 1 MGD × 3.785411784 = 3.785411784 MLD.
Is the MGD to MLD conversion exact?
Yes. Both units are defined exactly, and 1 MGD is exactly 3.785411784 MLD.
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, "gallon (U.S.)".
- 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 MGD to MLD. Retrieved October 29, 2026, from https://scientificconverters.com/discharge/mgd-to-mld/
IEEE
Scientific Converters, "Convert MGD to MLD," scientificconverters.com. Accessed: Oct. 29, 2026. [Online]. Available: https://scientificconverters.com/discharge/mgd-to-mld/