How to Convert Millilitres to Teaspoons (ml to tsp)
Volume conversions help with baking from American recipes, comparing petrol prices quoted per gallon abroad with pump prices per litre here, and reading PUB water bills in cubic metres. This guide shows how to convert millilitres into teaspoons by hand, with examples and a quick-reference table.
The conversion
To convert millilitres to teaspoons, multiply the value by 0.2028842018. To go the other way, divide by the same number (or multiply by 4.92892). For a quick estimate, multiply by about 0.2.
Teaspoons = millilitres × 0.2028842018
Worked examples
- 3 ml = 0.608653 tsp
- 12.5 ml = 2.5361 tsp
- 75 ml = 15.2163 tsp
Millilitres to Teaspoons table
| Millilitres | Teaspoons |
|---|---|
| 1 ml | 0.202884 tsp |
| 2 ml | 0.405768 tsp |
| 5 ml | 1.0144 tsp |
| 10 ml | 2.0288 tsp |
| 20 ml | 4.0577 tsp |
| 25 ml | 5.0721 tsp |
| 50 ml | 10.1442 tsp |
| 100 ml | 20.2884 tsp |
| 250 ml | 50.7211 tsp |
| 500 ml | 101.4421 tsp |
| 1,000 ml | 202.8842 tsp |
Common questions
Is ml to tsp exact?
The factors used here are the internationally defined values where they exist; results are rounded for display only.
How do I convert back?
Use the Teaspoons to Millilitres converter.
Mistakes to avoid
Multiplying when you should divide
Converting to a smaller unit gives a bigger number, and converting to a larger unit gives a smaller one. If your answer moves the wrong way, you have inverted the factor.
Mixing similar-sounding units
US and imperial gallons, pints and tons are different sizes, and decimal kilobytes differ from binary kibibytes.
Rounding the factor too early
Using 3 instead of 3.28 for feet per metre introduces an error of almost 9% before you have started.
Background
Singapore adopted the metric system in the 1970s, replacing imperial units and traditional Chinese measures in most official uses. Metric units are now standard in schools, trade and government, but older units survive in property, markets and imported goods.
Many conversion factors are exact by definition. The inch has been defined as exactly 2.54 centimetres since 1959, and the pound as exactly 0.45359237 kilograms, so conversions involving them can be as precise as you need.
Unit conversion is simply multiplication by a fixed ratio. The ratio between two units of the same quantity never changes, so once you know it you can convert any value in either direction.
For any value, use the Millilitres to Teaspoons Converter or browse all volume converters.
Run your own numbers: Millilitres to Teaspoons Converter