21 Milliliters to Teaspoons

21 mL ≈ 4.2606 tsp

Calculation: tsp = 21 mL × 0.202884 ≈ 4.2606 tsp

Milliliter to Teaspoon Converter

Choose the type of measurement to convert
Select the source unit to convert from
Select the target unit to convert to
Enter a numeric value or fraction to convert
Sig. Figures:

How much is 21 mL?

21 mL (0.71 fl oz) is about one US fluid ounce (29.6 mL), about two tablespoons.

What does 21 mL look like?

Illustration of a small measuring cup
21 mL (0.71 fl oz) is about one US fluid ounce (29.6 mL), about two tablespoons.

21 mL on the Teaspoon scale

mL01020304050tsp0246810

21 mL = 4.261 tsp

How to Convert Milliliter to Teaspoon

1 milliliter = 0.202884 Teaspoons

Teaspoon = Milliliter × 0.202884

Example: 21 mL × 0.202884 = 4.2606 tsp

Reverse Conversion

To convert Teaspoons back to milliliters:

  • Remember, 1 Teaspoon equals 4.92892 milliliters.
  • To convert 4.2606 tsp to mL, multiply 4.2606 x 4.92892, resulting in 21 mL.

21 mL is also equal to:

  • 0.021 liter
  • 0.088762 cup
  • 0.044381 pint
  • 0.02219 quart
  • 0.71009 ounce

Frequently Asked Questions

How much is 21 milliliters in Teaspoons?

21 milliliters equals 4.2606 Teaspoons. This is calculated by multiplying 21 by the conversion factor 0.202884.

What does 21 milliliters look like in Teaspoons?

21 milliliters (4.2606 Teaspoons) is a fluid ounce or a shot glass.

How do you calculate 21 milliliters to Teaspoons?

Multiply 21 by the conversion factor 0.202884. The calculation is 21 × 0.202884 = 4.2606 Teaspoons. This factor is defined by international measurement standards.

Share This Calculation

21 milliliters = 4.26057 Teaspoons
21 milliliters = 4.26057 Teaspoons — conversion chart

Nearby Conversions

11 milliliters2.232 Teaspoons 12 milliliters2.435 Teaspoons 13 milliliters2.637 Teaspoons 14 milliliters2.84 Teaspoons 15 milliliters3.043 Teaspoons 16 milliliters3.246 Teaspoons 17 milliliters3.449 Teaspoons 18 milliliters3.652 Teaspoons 19 milliliters3.855 Teaspoons 20 milliliters4.058 Teaspoons 22 milliliters4.463 Teaspoons 23 milliliters4.666 Teaspoons 24 milliliters4.869 Teaspoons 25 milliliters5.072 Teaspoons 26 milliliters5.275 Teaspoons 27 milliliters5.478 Teaspoons 28 milliliters5.681 Teaspoons 29 milliliters5.884 Teaspoons 30 milliliters6.087 Teaspoons 31 milliliters6.289 Teaspoons

For general conversions between milliliters and Teaspoons, see the milliliters to Teaspoons converter.

Conversion factors verified against NIST, BIPM, ISO 80000-3 1 US gallon = 3.785411784 L (exact, US customary). Last reviewed: March 2026
Adilson Fernandes By Adilson Fernandes
Tiago Fernandes Reviewed by Tiago Fernandes

All unit conversions on CoolConversion use conversion factors defined or documented by internationally recognised standards bodies (such as ISO and NIST), including both SI and non-SI units.