---
title: "21 tbsp to tsp = 63 tsp"
description: "21 tablespoons is 63 teaspoons. The arithmetic, a table of nearby values, and a converter for any other number."
url: https://atoneplace.net/convert/21-tablespoons-to-teaspoons/
site: "At One Place"
---

# 21 tbsp to tsp

**21 tablespoons in teaspoons: 21 tbsp = 63 tsp**

tsp = tbsp × 3

21 tablespoons is 63 teaspoons. To get there, multiply by 3.

## Values either side

*Tablespoons near 21, converted to teaspoons.*

| Tablespoons | Teaspoons |
| --- | --- |
| 17 tbsp | 51 |
| 18 tbsp | 54 |
| 19 tbsp | 57 |
| 20 tbsp | 60 |
| 21 tbsp ← | 63 |
| 22 tbsp | 66 |
| 23 tbsp | 69 |
| 24 tbsp | 72 |
| 25 tbsp | 75 |

## How the conversion works

The relationship is tsp = tbsp × 3. 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 tbsp in teaspoons?

21 tbsp is 63 tsp.

### How do you convert tablespoons to teaspoons?

Multiply by 3.

## Related pages

- [Tablespoons to teaspoons](https://atoneplace.net/convert/tablespoons-to-teaspoons/)
- [21 tsp to tbsp](https://atoneplace.net/convert/21-teaspoons-to-tablespoons/)
- [17 tbsp to tsp](https://atoneplace.net/convert/17-tablespoons-to-teaspoons/)
- [18 tbsp to tsp](https://atoneplace.net/convert/18-tablespoons-to-teaspoons/)
- [19 tbsp to tsp](https://atoneplace.net/convert/19-tablespoons-to-teaspoons/)
- [20 tbsp to tsp](https://atoneplace.net/convert/20-tablespoons-to-teaspoons/)
- [22 tbsp to tsp](https://atoneplace.net/convert/22-tablespoons-to-teaspoons/)
- [23 tbsp to tsp](https://atoneplace.net/convert/23-tablespoons-to-teaspoons/)
- [24 tbsp to tsp](https://atoneplace.net/convert/24-tablespoons-to-teaspoons/)
- [25 tbsp to tsp](https://atoneplace.net/convert/25-tablespoons-to-teaspoons/)

## 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/)