Volumetric flow rate.
Teaspoon per Hours to Milliliters per Millisecond Converter — tsp/h to mL/ms
Convert Teaspoon per Hours (tsp/h) to Milliliter per Millisecond (mL/ms) using the exact conversion factor (1 teaspoon per hours = 0.0000013691 milliliter per millisecond). See the formula, worked examples, and conversion table.
Teaspoon per Hours to Milliliters per Millisecond converter
Converter
Flow Rate Converter
Convert volumetric flow rates across metric, US, imperial, industrial, and scientific units.
Context values
Some unit families need one extra value for a physically accurate result.
Volumetric flow rate.
Result = input x 1.36914489e-9 / 0.001.
Flow rate uses cubic meters per second as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Teaspoon per Hours to Milliliters per Millisecond
Teaspoon per Hours and Milliliter per Millisecond both measure volumetric flow rate — how much volume passes a point over time — used to size pipes and pumps, monitor river or stream discharge, control industrial processes, and set medical infusion rates. Both are volumetric flow rate units.
Formula
milliliters per millisecond = teaspoon per hours × 0.00000136914488715
This factor comes from each unit's defined relationship to the category's base unit: 1 teaspoon per hours equals 1.369145e-9 base units, and 1 milliliter per millisecond equals 0.001 base units, so dividing one by the other gives the direct teaspoon per hours-to-milliliter per millisecond factor of 0.00000136914488715.
Simple example
1 tsp/h × 0.000001369144887 = 0.0000013691 mL/ms
1 teaspoon per hours = 0.0000013691 milliliters per millisecond.
Real-world example
60 tsp/h × 0.000001369144887 = 0.0000821487 mL/ms
60 teaspoon per hours = 0.0000821487 milliliters per millisecond.
Conversion table
| Teaspoon per Hours (tsp/h) | Milliliter per Millisecond (mL/ms) |
|---|---|
| 0.1 tsp/h | 1.369145e-7 mL/ms |
| 1 tsp/h | 0.0000013691 mL/ms |
| 10 tsp/h | 0.0000136914 mL/ms |
| 60 tsp/h | 0.0000821487 mL/ms |
| 100 tsp/h | 0.0001369145 mL/ms |
| 1,000 tsp/h | 0.0013691449 mL/ms |
Reverse conversion: Milliliter per Millisecond to Teaspoon per Hours
0.0000013691 mL/ms × 730382.8904 = 0.9999672152 tsp/h
0.0000013691 milliliters per millisecond = 0.9999672152 teaspoon per hours.
teaspoon per hours = milliliters per millisecond × 730382.89036
For a page dedicated to this direction, see Milliliter per Millisecond to Teaspoon per Hours.
Understanding the Teaspoon per Hours (tsp/h)
Volumetric flow rate.
Understanding the Milliliter per Millisecond (mL/ms)
Volumetric flow rate.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many milliliters per millisecond are in 1 teaspoon per hours?
1 teaspoon per hours equals 0.0000013691 milliliters per millisecond, using the exact defined conversion factor rather than an estimate.
How do I convert teaspoon per hours to milliliter per millisecond?
Multiply the teaspoon per hours value by 0.000001369144887. The converter above does this instantly to whatever precision you set.
How do I convert milliliter per millisecond back to teaspoon per hours?
Use the reverse factor: 1 milliliter per millisecond equals 730,382.8904 teaspoon per hours. You can also use the swap control in the converter above to flip the direction instantly.
What is a teaspoon per hours?
Teaspoon per Hours (tsp/h) is a unit of flow rate.
What is a milliliter per millisecond?
Milliliter per Millisecond (mL/ms) is a unit of flow rate.
Is the teaspoon per hours to milliliter per millisecond conversion exact?
Yes. Both teaspoon per hours and milliliter per millisecond are defined by fixed standards rather than physical artifacts, so the factor of 0.000001369144887 used above is exact to as many digits as you choose to display.
What's the difference between volumetric and mass flow rate?
Volumetric flow rate measures the volume of fluid passing a point per unit time (for example, liters per second). Mass flow rate measures the mass instead. For a fluid of constant density the two are directly proportional, but for compressible fluids like gases, mass flow is often the more meaningful quantity.