Teaspoons to mL Converter
How to convert teaspoons to mL
Using US customary definitions, 1 teaspoon ≈ 4.928921594 mL. Multiply the starting value by 4.928921594 to get the result in mL; results are rounded to up to 6 decimal places.
Quick reference table
| US teaspoons (tsp) | Milliliters (ml) |
|---|---|
| 1 | 4.928922 |
| 5 | 24.644608 |
| 10 | 49.289216 |
| 25 | 123.22304 |
| 50 | 246.44608 |
| 100 | 492.892159 |
Frequently Asked Questions
How many mL are in 1 teaspoon?
1 teaspoon (US) ≈ 4.928921594 mL. Other values use the same proportional conversion.
Does the teaspoon-to-mL conversion vary by country?
This page uses US customary definitions: 1 tbsp ≈ 14.79 mL, 1 tsp ≈ 4.93 mL, 1 fl oz ≈ 29.57 mL, 1 pint ≈ 473 mL, 1 quart ≈ 0.946 L and 1 gallon ≈ 3.785 L. UK imperial units (for example 1 pint ≈ 568 mL) and spoon sizes in other countries differ slightly, so check the recipe source.
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Why use a volume converter?
Recipes, drink formulas, product labels and technical specifications often use different volume units. This tool puts US teaspoons, tablespoons, cups, pints, quarts and gallons alongside milliliters, liters and cubic units for quick checks.
tsp, tbsp, fl oz, cup, pt, qt and gal use US customary liquid definitions. One US cup is about 236.588 ml, while a metric recipe cup is commonly 250 ml, so check the recipe source.
Common reference values
- 1 L = 1,000 ml
- 1 m³ = 1,000 L
- 1 US tbsp is about 14.7868 ml
- 1 US gal is about 3.78541 L
Teaspoons to mL Converter
Handy for spices, baking powder and liquid medicine doses written in teaspoons (tsp). This page uses the US teaspoon (about 4.93 mL); many countries round it to 5 mL.