---
title: "Milliliters to Teaspoons — mL to tsp converter"
description: "1 milliliter = 0.20288 teaspoons. Convert milliliters to teaspoons with a full conversion table, the exact formula, and a calculator for any value."
url: https://atoneplace.net/convert/ml-to-teaspoons/
site: "At One Place"
---

# Milliliters to teaspoons

**1 milliliter in teaspoons: 1 mL = 0.20288 tsp**

tsp = mL × 0.2028841362

To convert milliliters to teaspoons, multiply by 0.2028841362. The table below gives the values people look up most often, and the converter works for any number.

## Milliliters to teaspoons table

*Common milliliter values converted to teaspoons.*

| Milliliters | Teaspoons |
| --- | --- |
| 1 mL | 0.20288 |
| 2 mL | 0.40577 |
| 3 mL | 0.60865 |
| 4 mL | 0.81154 |
| 5 mL | 1.014421 |
| 10 mL | 2.028841 |
| 15 mL | 3.043262 |
| 20 mL | 4.057683 |
| 25 mL | 5.072103 |
| 30 mL | 6.086524 |
| 40 mL | 8.115365 |
| 50 mL | 10.14421 |
| 75 mL | 15.21631 |
| 100 mL | 20.28841 |
| 250 mL | 50.72103 |
| 500 mL | 101.4421 |
| 1,000 mL | 202.8841 |

## How the conversion works

The relationship is tsp = mL × 0.2028841362. Both units measure volume, so the conversion is a fixed factor that never changes. The figure is exact rather than approximate: since the international yard and pound agreement of 1959, an inch is defined as exactly 25.4 millimetres and a pound as exactly 0.45359237 kilograms, and every other imperial and US customary unit here is derived from those two.

## Common questions

### How many teaspoons are in one milliliter?

One milliliter equals 0.20288 teaspoons. tsp = mL × 0.2028841362.

### How do you convert milliliters to teaspoons?

Use tsp = mL × 0.2028841362. So 10 mL is 2.028841 tsp.

### How many milliliters are in one teaspoon?

One teaspoon equals 4.928922 milliliters, which is the reverse of the conversion above.

## Related pages

- [Teaspoons to Milliliters](https://atoneplace.net/convert/teaspoons-to-ml/)
- [Milliliters to Liters](https://atoneplace.net/convert/ml-to-liters/)
- [Milliliters to Cubic meters](https://atoneplace.net/convert/ml-to-cubic-meters/)
- [Milliliters to US gallons](https://atoneplace.net/convert/ml-to-gallons/)
- [Milliliters to US quarts](https://atoneplace.net/convert/ml-to-quarts/)
- [Milliliters to US pints](https://atoneplace.net/convert/ml-to-pints/)
- [Milliliters to US cups](https://atoneplace.net/convert/ml-to-cups/)
- [Milliliters to US fluid ounces](https://atoneplace.net/convert/ml-to-fl-oz/)
- [Milliliters to Tablespoons](https://atoneplace.net/convert/ml-to-tablespoons/)

## Sources

- Guide for the Use of the International System of Units (SP 811) — NIST (https://www.nist.gov/pml/special-publication-811) [Public domain (US Government)]
- The International System of Units (SI Brochure) — Bureau International des Poids et Mesures (https://www.bipm.org/en/publications/si-brochure)
- Calculated on this page — At One Place (/about/)