Convert Centistokes to Stokes
Instantly convert Centistokes (cSt) to Stokes (St) with our free online calculator.
Formula: cSt to St — multiply by 0.01
Reference Table
| Centistokes (cSt) | Stokes (St) |
|---|---|
| 1 | 0.01 |
| 5 | 0.05 |
| 10 | 0.1 |
| 25 | 0.25 |
| 50 | 0.5 |
| 100 | 1 |
How to Convert Centistokes to Stokes
Formula
To convert Centistokes (cSt) to Stokes (St): multiply by 0.01
Step-by-Step
- Start with your value in Centistokes (cSt).
- Multiply by 0.01 to perform the conversion.
- The result is your value expressed in Stokes (St).
Conversion Factor
1 cSt = 0.01 St
Reverse Factor
1 St = 100 cSt
Worked Example
Convert 25 Centistokes to Stokes: 25 cSt = 0.25 St
About Centistoke (cSt)
A CGS kinematic-viscosity unit equal to exactly 0.01 stoke = 1 mm²/s = 10⁻⁶ m²/s. Centistokes is the traditional and still-dominant working unit in the global lubricant industry, petroleum products, and fuel-oil specifications. Industry standards using cSt directly: ISO 3104 / ASTM D445 (the universal capillary-tube kinematic-viscosity test method — every lubricant data sheet in the world traces back to this test), ISO 8217 (marine fuels — DM and RM grades all spec viscosity in cSt at either 40 °C or 50 °C; e.g., MGO 'Marine Gas Oil' is ≤ 6.0 cSt at 40 °C; HFO 'Heavy Fuel Oil' is up to 700 cSt at 50 °C), ASTM D2270 (Viscosity Index calculation from kinematic viscosity at 40 / 100 °C), SAE J300 (engine-oil grading at 100 °C and CCS-tested low-temp cP), ISO VG industrial-lubricant grading (the VG number = cSt at 40 °C, ±10%).
About Stoke (St)
The CGS unit of kinematic viscosity equal to exactly 1 cm²/s (= 100 cSt = 10⁻⁴ m²/s). Named after Irish mathematician Sir George Gabriel Stokes, whose 1851 paper 'On the Effect of the Internal Friction of Fluids on the Motion of Pendulums' (Cambridge Phil. Trans.) established the laminar-drag formula F = 6πμrv (Stokes' law) — still the basis for terminal-velocity calculations for sedimenting particles, atmospheric aerosol settling rates, and laboratory particle-sizing techniques (Stokes diameter). The stoke as a unit is occasionally used directly for highly viscous fluids in geophysics and glass science where typical values are large enough that cSt would have many leading zeros: basaltic lava 10² to 10⁴ St at eruption temperature, granitic / rhyolitic lava 10⁹ to 10¹¹ St, the asthenosphere of Earth's mantle 10¹⁸ to 10²⁰ St, the lower mantle 10²² St, glass at the working point ~10⁴ St.
Quick Facts
- 1 Centistoke equals 0.01 Stokes
- 1 Stoke equals 100 Centistokes
- Centistoke is a unit of kinematic viscosity
- Stoke is a unit of kinematic viscosity
- This conversion is commonly used in fluid flow analysis, lubrication engineering, and process design
- The Centistoke belongs to the metric system
Common Centistoke to Stoke Conversions
| Centistokes (cSt) | Stokes (St) |
|---|---|
| 0.01 | 0.0001 |
| 0.1 | 0.001 |
| 0.25 | 0.0025 |
| 0.5 | 0.005 |
| 1 | 0.01 |
| 2 | 0.02 |
| 3 | 0.03 |
| 5 | 0.05 |
| 10 | 0.1 |
| 15 | 0.15 |
| 20 | 0.2 |
| 25 | 0.25 |
| 50 | 0.5 |
| 75 | 0.75 |
| 100 | 1 |
| 250 | 2.5 |
| 500 | 5 |
| 1000 | 10 |
| 5000 | 50 |
| 10000 | 100 |
Understanding Centistokes
The Centistoke (symbol: cSt) is a unit of kinematic viscosity. A CGS kinematic-viscosity unit equal to exactly 0.01 stoke = 1 mm²/s = 10⁻⁶ m²/s. Centistokes is the traditional and still-dominant working unit in the global lubricant industry, petroleum products, and fuel-oil specifications. Industry standards using cSt directly: ISO 3104 / ASTM D445 (the universal capillary-tube kinematic-viscosity test method — every lubricant data sheet in the world traces back to this test), ISO 8217 (marine fuels — DM and RM grades all spec viscosity in cSt at either 40 °C or 50 °C; e.g., MGO 'Marine Gas Oil' is ≤ 6.0 cSt at 40 °C; HFO 'Heavy Fuel Oil' is up to 700 cSt at 50 °C), ASTM D2270 (Viscosity Index calculation from kinematic viscosity at 40 / 100 °C), SAE J300 (engine-oil grading at 100 °C and CCS-tested low-temp cP), ISO VG industrial-lubricant grading (the VG number = cSt at 40 °C, ±10%).
It belongs to the metric measurement system.
Centistokes are commonly used in fluid flow analysis, lubrication engineering, and process design.
Understanding Stokes
The Stoke (symbol: St) is a unit of kinematic viscosity. The CGS unit of kinematic viscosity equal to exactly 1 cm²/s (= 100 cSt = 10⁻⁴ m²/s). Named after Irish mathematician Sir George Gabriel Stokes, whose 1851 paper 'On the Effect of the Internal Friction of Fluids on the Motion of Pendulums' (Cambridge Phil. Trans.) established the laminar-drag formula F = 6πμrv (Stokes' law) — still the basis for terminal-velocity calculations for sedimenting particles, atmospheric aerosol settling rates, and laboratory particle-sizing techniques (Stokes diameter). The stoke as a unit is occasionally used directly for highly viscous fluids in geophysics and glass science where typical values are large enough that cSt would have many leading zeros: basaltic lava 10² to 10⁴ St at eruption temperature, granitic / rhyolitic lava 10⁹ to 10¹¹ St, the asthenosphere of Earth's mantle 10¹⁸ to 10²⁰ St, the lower mantle 10²² St, glass at the working point ~10⁴ St.
It belongs to the metric measurement system.
Stokes are commonly used in fluid flow analysis, lubrication engineering, and process design.
Why Convert Centistokes to Stokes?
Converting between Centistokes and Stokes is a frequent requirement for engineers, scientists, and students working with kinematic viscosity values. Different industries and regions favour different unit systems, so having a dependable conversion tool saves time and prevents errors in technical calculations. Whether you are verifying a specification sheet, cross-checking simulation results, or preparing a report for an international audience, accurate kinematic viscosity conversion is essential.
Frequently Asked Questions
How do I convert Centistokes to Stokes?
A CGS kinematic-viscosity unit equal to exactly 0. To convert Centistokes to Stokes, multiply by 0.01. For example, 25 cSt equals 0.25 St.
How many Stokes are in 1 Centistoke?
There are 0.01 Stokes in 1 Centistoke.
How many Centistokes are in 1 Stoke?
There are 100 Centistokes in 1 Stoke.
What is the formula for Centistoke to Stoke conversion?
The formula is: multiply by 0.01. This means 1 cSt = 0.01 St.
Is a Centistoke bigger than a Stoke?
Yes. One Centistoke is larger than one Stoke because 1 cSt equals 0.01 St, which is less than 1.
When do you need to convert between Centistokes and Stokes?
The CGS unit of kinematic viscosity equal to exactly 1 cm²/s (= 100 cSt = 10⁻⁴ m²/s). Centistoke and Stoke are both kinematic viscosity units, so conversion comes up whenever one source of information uses one unit and another uses the other — a classic cross-reference challenge in engineering, trade, travel, and everyday life.