Millilitre of Water to Teaspoon (water-equivalent)

Free instant millilitre of water to teaspoon (water-equivalent) converter. 1 mL = 0.202884 tsp.

0.202884
Formula
1 mL = 0.202884 tsp

Common Millilitre of Water to Teaspoon (water-equivalent) values

Common Millilitre of Water to Teaspoon (water-equivalent) conversion values.
Millilitre of Water (mL)Teaspoon (water-equivalent) (tsp)
10.202884
51.01442
102.02884
255.0721
5010.1442
10020.2884
500101.442
1000202.884

How does Millilitre of Water to Teaspoon (water-equivalent) conversion work?

Type a value in the Millilitre of Water (mL) field and the equivalent in Teaspoon (water-equivalent) (tsp) appears instantly to the right. The math uses the exact formula shown above โ€” no rounding errors, no approximations beyond standard floating-point precision. Use the swap button to flip the units and see the inverse conversion.

Millilitre of Water. For water, 1 millilitre weighs exactly 1 gram (the definition of the gram). True at standard pressure and 4ยฐC.

Teaspoon (water-equivalent). 1 US teaspoon = 4.929 mL (1/6 fl oz). Equivalent grams assume water density.

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๐ŸŽฏ Accurate conversions

Conversion factors come from the official standard (NIST, BIPM, ISO definitions where applicable). Values are precise to standard floating-point limits.

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Frequently asked

What is the formula for converting Millilitre of Water to Teaspoon (water-equivalent)?+
The formula is: 1 mL = 0.202884 tsp. Type any value into the calculator above and the result appears instantly.
How do I convert Teaspoon (water-equivalent) back to Millilitre of Water?+
Click the swap button (โ‡„) above to go to the Teaspoon (water-equivalent) โ†’ Millilitre of Water converter, or use the inverse formula derived from the one shown.
How accurate is the conversion?+
Conversion factors used here are exact rational values from NIST SP 811 and the BIPM SI brochure (e.g. 1 ft = 0.3048 m exactly, 1 lb = 0.45359237 kg exactly). Trailing-digit differences vs hand calculation come only from binary floating-point representation, never from the conversion factor itself.
Where do these conversion factors come from?+
Length and mass factors come from the 1959 international yard-and-pound agreement; SI base units (metre, kilogram, second, kelvin) come from the 2019 BIPM redefinition; energy and pressure factors are NIST SP 811 reference values. Each editorial section above lists the specific source for that category.
Can I copy the conversion factor for use elsewhere?+
Yes. The factor in the formula above is the exact rational value used internally; copying it into Excel or another tool reproduces the result to floating-point precision.

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