Authoritative definitions of the International System of Units and SI prefixes.
Dedicated unit pair
Stokes to Centistokes
Convert St to cSt instantly, then review the formula, assumptions, and rounding guidance.
ViscosityInstant result
Decimals
Formula result = input × 0.0001 ÷ 0.000001. 1 St = 100 cSt
Common examples
One value, several units
Square metres per second0.0001 m²/s
Square millimetres per second100 mm²/s
Centistokes100 cSt
Square feet per second0.0011 ft²/s
Conversion table
| St | cSt |
|---|---|
| 1 St | 100 cSt |
| 2 St | 200 cSt |
| 5 St | 500 cSt |
| 10 St | 1,000 cSt |
| 25 St | 2,500 cSt |
| 50 St | 5,000 cSt |
| 100 St | 10,000 cSt |
Conversion chart
1 St100 cSt
5 St500 cSt
10 St1,000 cSt
25 St2,500 cSt
50 St5,000 cSt
Worked example
1 cSt equals 1 mm²/s.
Unit definition
Stokes (St) One stokes equals 0.0001 square metre per second.
Unit history
Stokes is represented here using its modern SI definition or an internationally accepted relationship to an SI base unit.
Step by step
1. Parse the value, including fractions.
2. Convert St to square metre per second.
3. Convert the base value to cSt and apply your display precision.
Understand the result before using it
Stokes to Centistokes converts a value measured in Stokes (St) into the equivalent value in Centistokes (cSt). The numerical value changes because the size and definition of the selected unit changes; the underlying quantity does not.
Calculated result
The conversion follows the displayed unit relationship. Display rounding can hide additional digits, and measured inputs cannot become more accurate merely by changing units.
Formula, assumptions, and example
Formula
result = input × 0.0001 ÷ 0.000001
Assumptions
- Stokes and Centistokes represent the same kinematic viscosity quantity.
- The input is expressed in St; the output is expressed in cSt.
- The unit definitions and conventional relationship shown on this page apply.
Worked example
1 St = 100 cSt. For another value, apply the same relationship and round only to the precision your source measurement supports.
When to use it
Good uses
- Read a St measurement in a document that expects cSt.
- Compare a stokes value with a value reported in centistokes.
- Check the St-to-cSt arithmetic before copying the result into another calculation.
Limitations
Common mistakes to avoid
- Dynamic and kinematic viscosity are different quantities and require density to convert between each other.
- Round the output to a precision justified by the original measurement.
- Verify safety-critical, regulated, laboratory, and contractual conversions against the controlling standard.
Sources and further reading
These references explain the underlying standards or provide authoritative context. Your own contract, institution, clinician, product documentation, local code, or governing standard may be the controlling source.
Guidance on unit names, symbols, conversions, and numerical presentation.
Questions about this calculation
How do I convert Stokes to Centistokes?
result = input × 0.0001 ÷ 0.000001 Using the displayed relationship, 1 St equals 100 cSt.
How many Centistokes are in one Stokes?
One Stokes is 100 Centistokes. The displayed digits may be rounded.
Can I reverse the St to cSt conversion?
Yes. Swap the source and target units in the converter. The reverse relationship converts cSt back to St.
Is the Stokes to Centistokes result exact?
The conversion follows the displayed unit relationship. Display rounding can hide additional digits, and measured inputs cannot become more accurate merely by changing units.