US teaspoon to Liter Converter
1 tsp = 0.004929 L — convert instantly with formula and table.
Type a value above and it converts instantly — no button to press, no page reload, and the math runs entirely in your browser.
Quick answer: one us teaspoon equals 0.004929 liters. So to convert US teaspoons to liters, multiply by 0.00492892.
How to convert US teaspoons to liters
liters = US teaspoons × 0.0049289216
The US teaspoon is defined as exactly 4.92892159375 ml — one third of a tablespoon — and anchors small quantities in American recipes.
The liter (1,000 cubic centimeters) is the everyday metric volume: bottled water, fuel and engine displacement are all sold by the liter.
US teaspoon to Liter conversion table
| US teaspoon (tsp) | Liter (L) |
|---|---|
| 0.01 tsp | 0.00004929 L |
| 0.1 tsp | 0.00049289 L |
| 0.25 tsp | 0.001232 L |
| 0.4 tsp | 0.001972 L |
| 0.75 tsp | 0.003697 L |
| 1.25 tsp | 0.006161 L |
| 1.75 tsp | 0.008626 L |
| 2.5 tsp | 0.012322 L |
| 3.5 tsp | 0.017251 L |
| 4.5 tsp | 0.02218 L |
| 6 tsp | 0.029574 L |
| 8 tsp | 0.039431 L |
| 10 tsp | 0.049289 L |
| 12 tsp | 0.059147 L |
| 14 tsp | 0.069005 L |
| 16 tsp | 0.078863 L |
| 18 tsp | 0.088721 L |
| 20 tsp | 0.098578 L |
| 24 tsp | 0.118294 L |
| 26 tsp | 0.128152 L |
| 30 tsp | 0.147868 L |
| 35 tsp | 0.172512 L |
| 45 tsp | 0.221801 L |
| 55 tsp | 0.271091 L |
| 65 tsp | 0.32038 L |
| 75 tsp | 0.369669 L |
| 85 tsp | 0.418958 L |
| 95 tsp | 0.468248 L |
| 110 tsp | 0.542181 L |
| 125 tsp | 0.616115 L |
| 175 tsp | 0.862561 L |
| 250 tsp | 1.2322 L |
| 350 tsp | 1.7251 L |
| 450 tsp | 2.218 L |
| 600 tsp | 2.9574 L |
| 750 tsp | 3.6967 L |
| 900 tsp | 4.436 L |
| 1,500 tsp | 7.3934 L |
| 2,500 tsp | 12.3223 L |
| 10,000 tsp | 49.2892 L |
Need the opposite direction? Use the Liter to US teaspoon converter, or read our complete guide to volume conversions for every formula in one place.
Frequently asked questions
How many liters are in one us teaspoon?
One us teaspoon equals 0.004929 liters. Multiply any us teaspoon value by 0.00492892 to get liters.
What is 10 US teaspoons in liters?
10 US teaspoons equal 0.049289 liters (10 × 0.004929).
Is the us teaspoon to liter conversion exact?
The conversion factor used here (0.0049289216) is based on the internationally agreed definitions of both units, so results are exact up to rounding of the final decimal places.
Is my data stored when I use this converter?
No. The conversion runs entirely in your browser with JavaScript — nothing you type is sent to a server, logged or stored.