---
title: "1 tsp to L = 0.0049289 L"
description: "1 teaspoon is 0.0049289 liters. The arithmetic, a table of nearby values, and a converter for any other number."
url: https://atoneplace.net/convert/1-teaspoons-to-liters/
site: "At One Place"
---

# 1 tsp to L

**1 teaspoon in liters: 1 tsp = 0.0049289 L**

L = tsp × 0.004928921594

1 teaspoon is 0.0049289 liters. To get there, multiply by 0.004928921594.

## Values either side

*Teaspoons near 1, converted to liters.*

| Teaspoons | Liters |
| --- | --- |
| 0.5 tsp | 0.0024645 |
| 1 tsp ← | 0.0049289 |
| 1.5 tsp | 0.0073934 |
| 2 tsp | 0.0098578 |
| 2.5 tsp | 0.012322 |
| 3 tsp | 0.014787 |

## How the conversion works

The relationship is L = tsp × 0.004928921594. Both units measure volume, so the conversion is a fixed factor that never changes. The figure is exact rather than approximate: since the international yard and pound agreement of 1959, an inch is defined as exactly 25.4 millimetres and a pound as exactly 0.45359237 kilograms, and every other imperial and US customary unit here is derived from those two.

## Common questions

### What is 1 tsp in liters?

1 tsp is 0.0049289 L.

### How do you convert teaspoons to liters?

Multiply by 0.004928921594.

## Related pages

- [Teaspoons to liters](https://atoneplace.net/convert/teaspoons-to-liters/)
- [1 L to tsp](https://atoneplace.net/convert/1-liters-to-teaspoons/)
- [0.5 tsp to L](https://atoneplace.net/convert/0-5-teaspoons-to-liters/)
- [1.5 tsp to L](https://atoneplace.net/convert/1-5-teaspoons-to-liters/)
- [2 tsp to L](https://atoneplace.net/convert/2-teaspoons-to-liters/)
- [2.5 tsp to L](https://atoneplace.net/convert/2-5-teaspoons-to-liters/)
- [3 tsp to L](https://atoneplace.net/convert/3-teaspoons-to-liters/)

## Sources

- Guide for the Use of the International System of Units (SP 811) — NIST (https://www.nist.gov/pml/special-publication-811) [Public domain (US Government)]
- The International System of Units (SI Brochure) — Bureau International des Poids et Mesures (https://www.bipm.org/en/publications/si-brochure)
- Calculated on this page — At One Place (/about/)