Millimetres per Hour to Metres per Day (mm/h to m/day)
1 millimetre per hour (mm/h) = 0.024 metres per day (m/day). 1 m/day = 41.66666667 mm/h. Example: 15 mm/h = 15 × 0.024 = 0.36 m/day.
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1 mm/h = 0.024 m/day
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk millimetre per hour to metre per day converter to paste a column from Excel.
How to Convert Millimetre per Hour to Metre per Day
- 1 mm/h = 0.024 m/day
- 1 m/day = 41.66666667 mm/h
- Example: convert 15 mm/h to m/day: 15 mm/h = 15 × 0.024 m/day = 0.36 m/day
Formula
m/day = mm/h × 0.024
or m/day = mm/h ÷ 41.66666666667
Derivation from SI units:
- 1 mm/h = 0.001/3600 m/s.
- 1 m/day = 1/86,400 m/s.
- 1 mm/h = 2.777777777778 × 10⁻⁷ m/s ÷ 0.00001157407407407 m/s per m/day = 0.024 m/day
Both units are defined exactly, so the factor is exact. Millimetre per Hour definition: millimetre per hour; Metre per Day definition: metre per day.
Worked examples
- A reading of 10 mm/h converts to 0.24 m/day.
10 mm/h × 0.024 = 0.24 m/day - A value of 50 mm/h is 1.2 m/day.
50 mm/h × 0.024 = 1.2 m/day
Millimetre per Hour to Metre per Day conversion table
| Millimetres per Hour (mm/h) | Metres per Day (m/day) |
|---|---|
| 1 mm/h | 0.024 m/day |
| 2 mm/h | 0.048 m/day |
| 5 mm/h | 0.12 m/day |
| 10 mm/h | 0.24 m/day |
| 15 mm/h | 0.36 m/day |
| 25 mm/h | 0.6 m/day |
| 50 mm/h | 1.2 m/day |
| 75 mm/h | 1.8 m/day |
| 100 mm/h | 2.4 m/day |
| 150 mm/h | 3.6 m/day |
Where it's used
Millimetres per Hour are used for sprinkler application rate versus infiltration, while metres per day appear in aquifer transmissivity T = K b (m²/day). Both measure hydraulic conductivity (coefficient of permeability k), so the conversion is a fixed factor.
Millimetre per Hour to other hydraulic conductivity units
| Conversion | 1 mm/h equals |
|---|---|
| millimetre per hour to metre per day | 0.024 m/day |
| millimetre per hour to metre per second | 2.777777778 × 10⁻⁷ m/s |
| millimetre per hour to centimetre per second | 0.00002777777778 cm/s |
| millimetre per hour to centimetre per hour | 0.1 cm/h |
| millimetre per hour to foot per day | 0.07874015748 ft/day |
| millimetre per hour to inch per hour | 0.03937007874 in/h |
| millimetre per hour to gpd/ft² | 0.5890172819 gpd/ft² |
Frequently asked questions
How many metres per day are in 1 millimetre per hour?
1 mm/h = 0.024 m/day.
How do I convert millimetres per hour to metres per day?
Multiply the value in mm/h by 0.024, or divide it by 41.66666667. For example, 15 mm/h × 0.024 = 0.36 m/day.
Is the mm/h to m/day conversion exact?
Yes. Both units are defined exactly, and 1 mm/h is exactly 0.024 m/day.
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). Millimetres per Hour to Metres per Day (mm/h to m/day). Retrieved October 29, 2026, from https://scientificconverters.com/hydraulic-conductivity/millimeters-per-hour-to-meters-per-day/
IEEE
Scientific Converters, "Millimetres per Hour to Metres per Day (mm/h to m/day)," scientificconverters.com. Accessed: Oct. 29, 2026. [Online]. Available: https://scientificconverters.com/hydraulic-conductivity/millimeters-per-hour-to-meters-per-day/