Instant conversion
Teaspoons To Milliliters Converter
1 US teaspoon = 4.92892 milliliters. Multiply teaspoons by 4.92892.
What does this tool do?
Teaspoons To Milliliters Converter computes the result directly in your browser — 1 US teaspoon = 4.92892 milliliters. Multiply teaspoons by 4.92892. Nothing you enter is uploaded or stored.
- 1 US teaspoon = 4.92892 milliliters. Multiply teaspoons by 4.92892.
- Reverse: 1 ml = 0.202881 tsp
- A US teaspoon is 1/6 fluid ounce, about 4.93 ml. Real-world anchor: a level teaspoon of sugar.
Common tsp to ml conversions
| tsp | ml |
|---|---|
| 0.5 | 2.464 |
| 1 | 4.929 |
| 2 | 9.858 |
| 3 | 14.79 |
| 5 | 24.64 |
| 10 | 49.29 |
| 20 | 98.58 |
| 50 | 246.4 |
| 100 | 492.9 |
| 200 | 985.8 |
| 500 | 2464 |
| 1000 | 4929 |
How this conversion works
1 US teaspoon = 4.92892 milliliters. Multiply teaspoons by 4.92892.
Privacy: Conversions run in this browser. Nothing you type is uploaded.
Why this conversion is exact
The exact factor behind this page: 1 tsp = 4.92892 ml. That value is a defined standard, not a measurement, so every conversion on this page is exact up to the digits shown. The most common practical error is mixing up which direction the factor runs: multiply when going from tsp to ml, divide when returning.
Rounding is display-only. The converter keeps full precision internally, so chained conversions (this unit to another and back) return to the starting value without drift, which hand-rounded tables cannot promise.
What you are converting
US teaspoon
A US teaspoon is 1/6 fluid ounce, about 4.93 ml. Real-world anchor: a level teaspoon of sugar.
Milliliter
A milliliter is 1/1,000 of a liter. Real-world anchor: a standard medicine cup is often 5 ml.
Why convert and when you would use this
Medicine dosing and baking both ask for teaspoons or ml — convert without guessing.
Worked example
Worked example: 10 tsp × 4.92892 = 49.29 ml.
Rounding and accuracy
Use 2–4 decimal places for everyday tasks; keep more for engineering or lab precision.
Frequently asked questions
How do you convert tsp to ml?
1 US teaspoon = 4.92892 milliliters. Multiply teaspoons by 4.92892.
What is 1 tsp in ml?
1 tsp equals 4.92892 ml.
How do you convert back from ml to tsp?
Use the related ml to tsp page.