Teaspoons (US) to Milliliters Converter
Convert Teaspoons (US) to Milliliters with the exact conversion factor, a worked example and a quick-reference table. Runs entirely in your browser.
This converter turns Teaspoons (US) into Milliliters instantly using the standard definition of both units. It includes the formula, a worked example, and a quick table for common amounts, and it works for any value you type — including decimals and negatives where they make sense.
Quick reference — Teaspoons (US) to Milliliters
How to use this calculator
- Enter the value in Teaspoons (US) in the input box.
- Read the result in Milliliters — it updates as you type.
- Use the Swap button to convert in the opposite direction.
- Check the quick-reference table for common Teaspoons (US) amounts.
The formula
Milliliters = Teaspoons (US) × 4.92892
Worked example
1 tsp = 4.92892 ml — in full, 1 Teaspoons (US) converts to 4.92892 Milliliters. Recipes and kitchen measuring are the everyday jobs for this conversion.
Frequently Asked Questions
How do I convert Teaspoons (US) to Milliliters?
Multiply the value in Teaspoons (US) by 4.92892. For example, 1 Teaspoons (US) × 4.92892 = 4.92892 Milliliters. To go the other way, divide by 4.92892 instead — or press Swap in the converter above.
How many Milliliters are in one Teaspoon (US)?
One Teaspoon (US) equals 4.92892 Milliliters. Scaling up, 10 Teaspoons (US) = 49.2892 Milliliters and 100 Teaspoons (US) = 492.892 Milliliters. The converter uses the full-precision factor, so typed values are more precise than the rounded figure quoted here.
Which is bigger, a Teaspoon (US) or a Milliliter?
A Teaspoon (US) is bigger. One Teaspoon (US) equals 4.92892 Milliliters, while one Milliliter is only 0.202884 Teaspoons (US). So a measurement that looks larger in Milliliters is reflecting the scale difference, not an error.
What is 1 Teaspoons (US) in Milliliters?
1 Teaspoons (US) is 4.92892 Milliliters. The math is 1 × 4.92892 = 4.92892. Try any other amount in the converter above and the result updates as you type.