US teaspoon to Milliliter Converter
Convert us teaspoons to milliliters with this free volume converter. The exact relationship used on this page is 1 us teaspoon = 4.92892159375 milliliters. Type any number — the result updates instantly, works on phones and desktops, and is ready to copy into homework, a spec sheet, or a shopping list.
Formula: Milliliter = US teaspoon × 4.92892159375
How to convert us teaspoons to milliliters
- Enter the value in us teaspoons in the converter.
- Read the equivalent amount in milliliters.
- Use the swap link if you need milliliter to us teaspoon instead.
- Check the table for common values without typing.
Worked examples
- 1 tsp = 4.928921594 mL
- 5 tsp = 24.64460797 mL
- 10 tsp = 49.28921594 mL
- 25 tsp = 123.2230398 mL
Conversion table
Common us teaspoons values converted to milliliters.
| tsp | mL |
|---|---|
| 1 | 4.928921594 |
| 2 | 9.857843188 |
| 3 | 14.78676478 |
| 4 | 19.71568638 |
| 5 | 24.64460797 |
| 6 | 29.57352956 |
| 7 | 34.50245116 |
| 8 | 39.43137275 |
| 9 | 44.36029434 |
| 10 | 49.28921594 |
| 20 | 98.57843187 |
| 50 | 246.4460797 |
| 100 | 492.8921594 |
| 250 | 1,232.230398 |
| 500 | 2,464.460797 |
| 1,000 | 4,928.921594 |
About this conversion
US teaspoon (tsp) and Milliliter (mL) are both volume units. Volume tools cover cooking cups and spoons, US and UK gallons, liters, milliliters, and cubic meters or feet. Bookmark this URL when you convert us teaspoons to milliliters often, then explore related pairs in the same category if you need a different target unit.
Need the other direction? Open the milliliter to us teaspoon converter.
FAQ
How many milliliters are in 1 us teaspoon?+
1 us teaspoon equals 4.92892159375 milliliters.
What is the formula to convert us teaspoons to milliliters?+
Milliliter = US teaspoon × 4.92892159375
How do I convert us teaspoons to milliliters by hand?+
Multiply the us teaspoon value by 4.92892159375. Example: 10 us teaspoons × 4.92892159375 = 49.2892159375 milliliters.
Is this tsp to mL converter accurate?+
Yes. Linear conversions use internationally agreed factors relative to SI. Temperature and inverse fuel units use the standard offset or reciprocal formulas, not a guessed scale factor.