---
title: "40 tsp to cup = 0.83333 cup"
description: "40 teaspoons is 0.83333 US cups. The arithmetic, a table of nearby values, and a converter for any other number."
url: https://atoneplace.net/convert/40-teaspoons-to-cups/
site: "At One Place"
---

# 40 tsp to cup

**40 teaspoons in US cups: 40 tsp = 0.83333 cup**

cup = tsp × 1/48

40 teaspoons is 0.83333 US cups. To get there, multiply by 0.02083333333.

## Values either side

*Teaspoons near 40, converted to US cups.*

| Teaspoons | US cups |
| --- | --- |
| 32 tsp | 0.66667 |
| 35 tsp | 0.72917 |
| 36 tsp | 0.75 |
| 37 tsp | 0.77083 |
| 40 tsp ← | 0.83333 |
| 45 tsp | 0.9375 |
| 50 tsp | 1.041667 |
| 55 tsp | 1.145833 |
| 60 tsp | 1.25 |

## How the conversion works

The relationship is cup = tsp × 1/48. 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.

> US cup: US legal cup is 240 mL; the customary cup used here is 236.588 mL.

## Common questions

### What is 40 tsp in US cups?

40 tsp is 0.83333 cup.

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

Multiply by 0.02083333333.

## Related pages

- [Teaspoons to US cups](https://atoneplace.net/convert/teaspoons-to-cups/)
- [40 cup to tsp](https://atoneplace.net/convert/40-cups-to-teaspoons/)
- [32 tsp to cup](https://atoneplace.net/convert/32-teaspoons-to-cups/)
- [35 tsp to cup](https://atoneplace.net/convert/35-teaspoons-to-cups/)
- [36 tsp to cup](https://atoneplace.net/convert/36-teaspoons-to-cups/)
- [37 tsp to cup](https://atoneplace.net/convert/37-teaspoons-to-cups/)
- [45 tsp to cup](https://atoneplace.net/convert/45-teaspoons-to-cups/)
- [50 tsp to cup](https://atoneplace.net/convert/50-teaspoons-to-cups/)
- [55 tsp to cup](https://atoneplace.net/convert/55-teaspoons-to-cups/)
- [60 tsp to cup](https://atoneplace.net/convert/60-teaspoons-to-cups/)

## 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/)