Authoritative definitions of the International System of Units and SI prefixes.
Dedicated unit pair
Square feet per second to Stokes
Convert ft²/s to St instantly, then review the formula, assumptions, and rounding guidance.
ViscosityInstant result
Decimals
Formula result = input × 0.09290304 ÷ 0.0001. 1 ft²/s = 929.0304 St
Common examples
One value, several units
Square metres per second0.0929 m²/s
Square millimetres per second92,903.04 mm²/s
Stokes929.0304 St
Centistokes92,903.04 cSt
Conversion table
| ft²/s | St |
|---|---|
| 1 ft²/s | 929.0304 St |
| 2 ft²/s | 1,858.0608 St |
| 5 ft²/s | 4,645.152 St |
| 10 ft²/s | 9,290.304 St |
| 25 ft²/s | 23,225.76 St |
| 50 ft²/s | 46,451.52 St |
| 100 ft²/s | 92,903.04 St |
Conversion chart
1 ft²/s929.0304 St
5 ft²/s4,645.152 St
10 ft²/s9,290.304 St
25 ft²/s23,225.76 St
50 ft²/s46,451.52 St
Worked example
1 cSt equals 1 mm²/s.
Unit definition
Square feet per second (ft²/s) One square feet per second equals 0.09290304 square metre per second.
Unit history
Square feet per second 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 ft²/s to square metre per second.
3. Convert the base value to St and apply your display precision.
Understand the result before using it
Square feet per second to Stokes converts a value measured in Square feet per second (ft²/s) into the equivalent value in Stokes (St). 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 × 0.09290304 ÷ 0.0001
Assumptions
- Square feet per second and Stokes represent the same kinematic viscosity quantity.
- The input is expressed in ft²/s; the output is expressed in St.
- The unit definitions and conventional relationship shown on this page apply.
Worked example
1 ft²/s = 929.0304 St. 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 ft²/s measurement in a document that expects St.
- Compare a square feet per second value with a value reported in stokes.
- Check the ft²/s-to-St 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 Square feet per second to Stokes?
result = input × 0.09290304 ÷ 0.0001 Using the displayed relationship, 1 ft²/s equals 929.0304 St.
How many Stokes are in one Square feet per second?
One Square feet per second is 929.0304 Stokes. The displayed digits may be rounded.
Can I reverse the ft²/s to St conversion?
Yes. Swap the source and target units in the converter. The reverse relationship converts St back to ft²/s.
Is the Square feet per second to Stokes 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.