Metre per Day (m/day)
Metres per day are the usual unit of hydraulic conductivity in groundwater hydrology and well design, because aquifer flows are slow: a sandy aquifer is about 10–50 m/day.
Symbol: m/day
Quantity: hydraulic conductivity (coefficient of permeability k)
SI relation: 1 m/day = 0.00001157407407407 m/s (exact)
Derivation: 1 m/day = 1/86,400 m/s.
Exact: yes, by definition
Typical uses
- Aquifer transmissivity T = K b (m²/day)
- Pumping-test analysis
- Drainage spacing (Hooghoudt)
Convert metres per day to other units
| Conversion | 1 m/day equals | Reverse |
|---|---|---|
| metre per day to metre per second | 0.00001157407407 m/s | metre per second to metre per day |
| metre per day to centimetre per second | 0.001157407407 cm/s | centimetre per second to metre per day |
| metre per day to centimetre per hour | 4.166666667 cm/h | centimetre per hour to metre per day |
| metre per day to millimetre per hour | 41.66666667 mm/h | millimetre per hour to metre per day |
| metre per day to foot per day | 3.280839895 ft/day | foot per day to metre per day |
| metre per day to inch per hour | 1.640419948 in/h | inch per hour to metre per day |
| metre per day to gpd/ft² | 24.54238675 gpd/ft² | gpd/ft² to metre per day |
Open the Hydraulic Conductivity Converter (cm/s, m/day) to convert any value between all units.
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). Metre per Day (m/day). Retrieved October 29, 2026, from https://scientificconverters.com/units/meter-per-day/
IEEE
Scientific Converters, "Metre per Day (m/day)," scientificconverters.com. Accessed: Oct. 29, 2026. [Online]. Available: https://scientificconverters.com/units/meter-per-day/