Convert Cumecs to MGD (m3/s to MGD)
1 cumec (m³/s) = 22.82446532 million US gallons per day (MGD). 1 MGD = 0.04381263639 m³/s. Example: 15 m³/s = 15 × 22.82446532 = 342.3669799 MGD.
Also searched as cumecs to MGD, cumecs in MGD, cumecs into million US gallons per day, m3/s to MGD, m3/s in million US gallons per day, m3/s into million US gallons per day, cumec to million US gallons per day, m3/s to million US gallons per day converter and how many million US gallons per day in a cumec.
1 m³/s = 22.82446532 MGD
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk cumec to MGD converter to paste a column from Excel.
How to Convert Cumec to MGD
- 1 m³/s = 22.82446532 MGD
- 1 MGD = 0.04381263639 m³/s
- Example: convert 15 m³/s to MGD: 15 m³/s = 15 × 22.82446532 MGD = 342.3669799 MGD
Formula
MGD = m³/s × 22.82446532374
Derivation from SI units:
- 1 cumec = 1 m³/s.
- 1 MGD = 10⁶ × 3.785411784 L per day ≈ 0.0438 m³/s.
Both units are defined exactly, so the factor is exact. Cumec definition: cumec; MGD definition: million US gallons per day.
Worked examples
- A reading of 5 m³/s converts to 114.1223266 MGD.
5 m³/s × 22.82446532 = 114.1223266 MGD - A value of 100 m³/s is 2282.446532 MGD.
100 m³/s × 22.82446532 = 2282.446532 MGD
Cumec to MGD conversion table
| Cumecs (m³/s) | MGD |
|---|---|
| 0.1 m³/s | 2.282446532 MGD |
| 0.5 m³/s | 11.41223266 MGD |
| 1 m³/s | 22.82446532 MGD |
| 5 m³/s | 114.1223266 MGD |
| 10 m³/s | 228.2446532 MGD |
| 50 m³/s | 1141.223266 MGD |
| 100 m³/s | 2282.446532 MGD |
| 500 m³/s | 11412.23266 MGD |
| 1000 m³/s | 22824.46532 MGD |
| 10000 m³/s | 228244.6532 MGD |
Where it's used
Cumecs are used for river and flood discharge, while million US gallons per day appear in US treatment-plant capacity. Both measure volumetric discharge of rivers, canals and water supply, so the conversion is a fixed factor.
Cumec to other water discharge units
| Conversion | 1 m³/s equals |
|---|---|
| cumec to MGD | 22.82446532 MGD |
| cumec to cusec | 35.31466672 ft³/s |
| cumec to MLD | 86.4 MLD |
| cumec to litre per second | 1000 L/s |
| cumec to cubic metre per day | 86400 m³/day |
| cumec to MGD (imp) | 19.00534305 MGD (imp) |
| cumec to acre-foot per day | 70.04561994 acre-ft/day |
Frequently asked questions
How many million US gallons per day are in 1 cumec?
1 m³/s = 22.82446532 MGD.
How do I convert cumecs to million US gallons per day?
Multiply the value in m³/s by 22.82446532. For example, 15 m³/s × 22.82446532 = 342.3669799 MGD.
Is the m³/s to MGD 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, "gallon (U.S.)".
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 Cumecs to MGD (m3/s to MGD). Retrieved October 29, 2026, from https://scientificconverters.com/discharge/cumecs-to-mgd/
IEEE
Scientific Converters, "Convert Cumecs to MGD (m3/s to MGD)," scientificconverters.com. Accessed: Oct. 29, 2026. [Online]. Available: https://scientificconverters.com/discharge/cumecs-to-mgd/