Volume conversion
US teaspoon to Millilitre
One us teaspoon is 4.928922 millilitres. Enter any value below to convert it instantly, or use the reference table further down for the numbers you need most often.
Conversion rate
1 tsp = 4.928922 ml
ml = tsp × 4.928922
1 tsp = 4.928922 ml
Reference
US teaspoon to Millilitre table
The values people look up most often, rounded for practical use.
| US teaspoon (tsp) | Millilitre (ml) | Written out |
|---|---|---|
| 1 tsp | 4.928922 ml | 1 teaspoons = 4.928922 millilitres |
| 2 tsp | 9.857843 ml | 2 teaspoons = 9.857843 millilitres |
| 3 tsp | 14.78676 ml | 3 teaspoons = 14.78676 millilitres |
| 5 tsp | 24.64461 ml | 5 teaspoons = 24.64461 millilitres |
| 10 tsp | 49.28922 ml | 10 teaspoons = 49.28922 millilitres |
| 15 tsp | 73.93382 ml | 15 teaspoons = 73.93382 millilitres |
| 20 tsp | 98.57843 ml | 20 teaspoons = 98.57843 millilitres |
| 25 tsp | 123.223 ml | 25 teaspoons = 123.223 millilitres |
| 50 tsp | 246.446 ml | 50 teaspoons = 246.446 millilitres |
| 100 tsp | 492.892 ml | 100 teaspoons = 492.892 millilitres |
| 250 tsp | 1,232.23 ml | 250 teaspoons = 1,232.23 millilitres |
| 500 tsp | 2,464.461 ml | 500 teaspoons = 2,464.461 millilitres |
| 1,000 tsp | 4,928.922 ml | 1,000 teaspoons = 4,928.922 millilitres |
How to convert teaspoons to millilitres
Multiply the number of teaspoons by 4.928922. That is the whole calculation: ml = tsp × 4.928922. To go back the other way, divide instead, or multiply by 0.20288.
Worked example: 12 teaspoons × 4.928922 = 59.14706 millilitres.
Where this conversion comes up
Volume conversions are mostly a cooking problem, and there is a trap: US and imperial measures share names but differ in size. A US pint is 473 ml, an imperial pint is 568 ml. The units here are US measures unless labelled otherwise.
Quick answers
- 1 us teaspoon = 4.928922 millilitres
- 2 teaspoons = 9.857843 millilitres
- 5 teaspoons = 24.64461 millilitres
- 10 teaspoons = 49.28922 millilitres
- 100 teaspoons = 492.892 millilitres
More conversions
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Answers
Frequently asked questions
ml = tsp × 4.928922. The converter above applies it for you, but the formula is useful in a spreadsheet, put your value in column A and the formula in column B.Related tools
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