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Convert teaspoons to milliliters
Instant, accurate tsp → ml conversion with a live converter, table and formula.
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1 teaspoon = 4.92892 milliliters
1 milliliter = 0.202884 teaspoons
teaspoons to milliliters table
| teaspoons (tsp) | milliliters (ml) |
|---|---|
| 0.5 | 2.46446 |
| 1 | 4.92892 |
| 2 | 9.85784 |
| 5 | 24.6446 |
| 10 | 49.2892 |
| 20 | 98.5784 |
| 50 | 246.446 |
| 100 | 492.892 |
| 500 | 2464.46 |
| 1000 | 4928.92 |
Formula
milliliters = teaspoons × 4.92892.
Example
10 teaspoons = 49.2892 milliliters.
What is a teaspoon?
A teaspoon (tsp) is about 4.93 ml, the smallest common cooking measure.
What is a milliliter?
A milliliter (ml) is one-thousandth of a liter; a teaspoon is about 5 ml.
Real-world reference points
A liter is a large water bottle; a US cup is a small glass; a teaspoon is a sip of medicine.
| Reference | teaspoons | milliliters |
|---|---|---|
| Teaspoon of medicine | 1.01 tsp | 5 ml |
| Soda can | 66.95 tsp | 330 ml |
| Water bottle | 101 tsp | 500 ml |
| Car fuel tank (typical) | 10,144 tsp | 50,000 ml |
| Bathtub | 30,433 tsp | 150,000 ml |
Mistakes to avoid with volume conversions
- US vs imperial gallons: the imperial gallon is ~20% larger — UK fuel-economy figures aren't US ones.
- Converting milliliters to grams for ingredients that aren't water — oil, flour and honey have different densities.
- US recipe cups (236.6 ml) vs metric cups (250 ml) — a 5% error that ruins delicate baking.
Frequently asked questions
How many milliliters in a teaspoons?+
1 teaspoon = 4.92892 milliliters.
How do I convert teaspoons to milliliters?+
Enter the value in the teaspoons box above and the milliliters value appears instantly. You can also type in the milliliters box to convert the other way.
Is this tsp to ml converter free?+
Yes — it is 100% free, needs no sign-up, and runs entirely in your browser.