---
title: "18 tsp to L = 0.088721 L"
description: "18 teaspoons is 0.088721 liters. The arithmetic, a table of nearby values, and a converter for any other number."
url: https://atoneplace.net/convert/18-teaspoons-to-liters/
site: "At One Place"
---

# 18 tsp to L

**18 teaspoons in liters: 18 tsp = 0.088721 L**

L = tsp × 0.004928921594

18 teaspoons is 0.088721 liters. To get there, multiply by 0.004928921594.

## Values either side

*Teaspoons near 18, converted to liters.*

| Teaspoons | Liters |
| --- | --- |
| 14 tsp | 0.069005 |
| 15 tsp | 0.073934 |
| 16 tsp | 0.078863 |
| 17 tsp | 0.083792 |
| 18 tsp ← | 0.088721 |
| 19 tsp | 0.09365 |
| 20 tsp | 0.098578 |
| 21 tsp | 0.10351 |
| 22 tsp | 0.10844 |

## 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 18 tsp in liters?

18 tsp is 0.088721 L.

### How do you convert teaspoons to liters?

Multiply by 0.004928921594.

## Related pages

- [Teaspoons to liters](https://atoneplace.net/convert/teaspoons-to-liters/)
- [18 L to tsp](https://atoneplace.net/convert/18-liters-to-teaspoons/)
- [14 tsp to L](https://atoneplace.net/convert/14-teaspoons-to-liters/)
- [15 tsp to L](https://atoneplace.net/convert/15-teaspoons-to-liters/)
- [16 tsp to L](https://atoneplace.net/convert/16-teaspoons-to-liters/)
- [17 tsp to L](https://atoneplace.net/convert/17-teaspoons-to-liters/)
- [19 tsp to L](https://atoneplace.net/convert/19-teaspoons-to-liters/)
- [20 tsp to L](https://atoneplace.net/convert/20-teaspoons-to-liters/)
- [21 tsp to L](https://atoneplace.net/convert/21-teaspoons-to-liters/)
- [22 tsp to L](https://atoneplace.net/convert/22-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/)