---
title: "21 tsp to pt = 0.21875 pt"
description: "21 teaspoons is 0.21875 US pints. The arithmetic, a table of nearby values, and a converter for any other number."
url: https://atoneplace.net/convert/21-teaspoons-to-pints/
site: "At One Place"
---

# 21 tsp to pt

**21 teaspoons in US pints: 21 tsp = 0.21875 pt**

pt = tsp × 0.01041666667

21 teaspoons is 0.21875 US pints. To get there, multiply by 0.01041666667.

## Values either side

*Teaspoons near 21, converted to US pints.*

| Teaspoons | US pints |
| --- | --- |
| 17 tsp | 0.17708 |
| 18 tsp | 0.1875 |
| 19 tsp | 0.19792 |
| 20 tsp | 0.20833 |
| 21 tsp ← | 0.21875 |
| 22 tsp | 0.22917 |
| 23 tsp | 0.23958 |
| 24 tsp | 0.25 |
| 25 tsp | 0.26042 |

## How the conversion works

The relationship is pt = tsp × 0.01041666667. 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 21 tsp in US pints?

21 tsp is 0.21875 pt.

### How do you convert teaspoons to US pints?

Multiply by 0.01041666667.

## Related pages

- [Teaspoons to US pints](https://atoneplace.net/convert/teaspoons-to-pints/)
- [21 pt to tsp](https://atoneplace.net/convert/21-pints-to-teaspoons/)
- [17 tsp to pt](https://atoneplace.net/convert/17-teaspoons-to-pints/)
- [18 tsp to pt](https://atoneplace.net/convert/18-teaspoons-to-pints/)
- [19 tsp to pt](https://atoneplace.net/convert/19-teaspoons-to-pints/)
- [20 tsp to pt](https://atoneplace.net/convert/20-teaspoons-to-pints/)
- [22 tsp to pt](https://atoneplace.net/convert/22-teaspoons-to-pints/)
- [23 tsp to pt](https://atoneplace.net/convert/23-teaspoons-to-pints/)
- [24 tsp to pt](https://atoneplace.net/convert/24-teaspoons-to-pints/)
- [25 tsp to pt](https://atoneplace.net/convert/25-teaspoons-to-pints/)

## 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/)