/convert/tsp-to-ml/ Convert teaspoons (US) to milliliters instantly with a reference table. article teaspoons (US) to milliliters Converter — 247QuickTools
💧 Volume

teaspoons (US) to milliliters Converter

Convert teaspoons (US) to milliliters instantly with a reference table.

Quick answer: To convert teaspoons (US) to milliliters, multiply by 4.92892. For example, 1 teaspoons (US) = 4.92892 milliliters. Use the calculator below for any value.
teaspoons (US) to milliliters
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Common conversions
teaspoons (US) milliliters
Formula:

How to convert teaspoons (US) to milliliters

1

Enter your value

Type the number of teaspoons (us) you want to convert into the left box. The result in milliliters appears instantly in the right box. You can also type into the right box to convert in the other direction.

2

Use the swap button

Click the ⇄ Swap button to reverse the conversion — milliliters to teaspoons (US). Your current value carries across so you don't have to re-enter anything.

3

About teaspoons (US) and milliliters

teaspoons (US) and milliliters are common volume measurements.

📊 Common conversions at a glance
teaspoons (US) milliliters
0.25 1.232
0.5 2.464
1 4.929
1.5 7.393
2 9.858
3 14.79
Reviewed for 2026. teaspoons (US) ↔ milliliters conversion factor verified against published reference data. Built by a UK-based qualified primary teacher and FA Level 2 coach as part of 247QuickTools' free utility-tools project.

Frequently asked questions

How do I convert teaspoons (US) to milliliters?

To convert teaspoons (US) to milliliters, multiply by 4.92892. Or use the calculator above for instant results.

How many milliliters are in 1 teaspoons (US)?

1 teaspoons (US) equals 4.92892 milliliters.

Is the teaspoons (US) to milliliters converter free?

Yes, the teaspoons (US) to milliliters converter is completely free with no sign-up required, no downloads, and it works offline once the page has loaded.