Centimetre per Second (cm/s)
Centimetres per second are the unit most soil-mechanics texts and GATE questions use for the coefficient of permeability k: about 1 cm/s for gravel, 10⁻³ cm/s for fine sand and 10⁻⁷ cm/s for clay.
Symbol: cm/s
Quantity: hydraulic conductivity (coefficient of permeability k)
SI relation: 1 cm/s = 0.01 m/s (exact)
Derivation: 1 cm/s = 0.01 m/s.
Exact: yes, by definition
Typical uses
- Constant-head and falling-head permeability tests
- Indian Standard IS 2720 (Part 17) reports
- Textbook soil permeability tables
Convert centimetres per second to other units
| Conversion | 1 cm/s equals | Reverse |
|---|---|---|
| centimetre per second to metre per second | 0.01 m/s | metre per second to centimetre per second |
| centimetre per second to metre per day | 864 m/day | metre per day to centimetre per second |
| centimetre per second to centimetre per hour | 3600 cm/h | centimetre per hour to centimetre per second |
| centimetre per second to millimetre per hour | 36000 mm/h | millimetre per hour to centimetre per second |
| centimetre per second to foot per day | 2834.645669 ft/day | foot per day to centimetre per second |
| centimetre per second to inch per hour | 1417.322835 in/h | inch per hour to centimetre per second |
| centimetre per second to gpd/ft² | 21204.62215 gpd/ft² | gpd/ft² to centimetre per second |
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). Centimetre per Second (cm/s). Retrieved October 29, 2026, from https://scientificconverters.com/units/centimeter-per-second-hydraulic/
IEEE
Scientific Converters, "Centimetre per Second (cm/s)," scientificconverters.com. Accessed: Oct. 29, 2026. [Online]. Available: https://scientificconverters.com/units/centimeter-per-second-hydraulic/