This converter turns teaspoons into liters instantly, using the exact factor 1 teaspoon = 0.004928921594 liters. Type any number and the result updates as you go — nothing is sent to a server, so the arithmetic happens entirely in your browser.
The smallest standard kitchen measure, 4.93 millilitres. One cubic decimetre — the everyday metric unit for drinks and fuel.
Because the relationship is a simple proportion, one multiplication does the whole job. The table further down gives pre-computed values for the amounts people look up most often, and the result panel also reports the reverse conversion so you can check the figure both ways.
The formula
teaspoons- The amount you are converting, measured in teaspoons
0.004928921594- The exact number of liters in one teaspoon
liters- The converted result
How it works, step by step
- Enter the number of teaspoons you want to convert.
- The value is multiplied by 0.004928921594, the exact conversion factor.
- The result is displayed in liters, rounded for readability.
- The unrounded value and the reverse conversion appear underneath so you can verify it.
Worked examples
Converting 5 teaspoons
Multiply 5 by 0.0049289216. That gives 0.024645 liters. A quick sanity check: one teaspoon is smaller than one liter, so the number should get smaller — and it does.
Converting 72 teaspoons
72 × 0.0049289216 = 0.354882 liters. Working backwards, 0.354882 ÷ 0.0049289216 returns 72 teaspoons, which confirms the factor is applied the right way round.
How to read your score
Frequently asked questions
How many liters are in one teaspoon?
Exactly 0.004928921594. Every conversion on this page is that single number multiplied by your input, so the result carries no rounding error beyond what is shown.
What is the formula to convert teaspoons to liters?
Liters = teaspoons × 0.004928921594. To reverse it, divide instead: teaspoons = liters ÷ 0.004928921594, which is the same as multiplying by 202.8841362.
Is the teaspoon bigger than the liter?
No. One teaspoon is only 0.00492892 of a liter, so the liter is the larger unit.
Why does my answer differ slightly from other teaspoons to liters converters?
Most differences come from rounding the factor too early. This tool keeps full double precision through the calculation and only rounds at the final display step, and it also shows the unrounded value so you can see exactly where any difference appears.
What is a teaspoon?
The smallest standard kitchen measure, 4.93 millilitres.
What is a liter?
One cubic decimetre — the everyday metric unit for drinks and fuel.
Teaspoons to liters reference table
| Teaspoons | Liters |
|---|---|
| 0.5 tsp | 0.002464 L |
| 1 tsp | 0.004929 L |
| 2 tsp | 0.009858 L |
| 3 tsp | 0.014787 L |
| 5 tsp | 0.024645 L |
| 10 tsp | 0.049289 L |
| 15 tsp | 0.073934 L |
| 20 tsp | 0.098578 L |
| 25 tsp | 0.123223 L |
| 50 tsp | 0.246446 L |
| 75 tsp | 0.369669 L |
| 100 tsp | 0.492892 L |
| 250 tsp | 1.2322 L |
| 500 tsp | 2.4645 L |
| 1000 tsp | 4.9289 L |
Exact factor: 1 teaspoon = 0.004928921594 liters. Values rounded for display.