---
title: "30 °F to °C = -1.111111 °C"
description: "30 degrees Fahrenheit is -1.111111 degrees Celsius. The arithmetic, a table of nearby values, and a converter for any other number."
url: https://atoneplace.net/convert/30-fahrenheit-to-celsius/
site: "At One Place"
---

# 30 °F to °C

**30 degrees Fahrenheit in degrees Celsius: 30 °F = -1.111111 °C**

°C = (°F − 32) × 5/9

30 degrees Fahrenheit is -1.111111 degrees Celsius. To get there, use °C = (°F − 32) × 5/9.

## Values either side

*Degrees Fahrenheit near 30, converted to degrees Celsius.*

| Degrees Fahrenheit | Degrees Celsius |
| --- | --- |
| 26 °F | -3.333333 |
| 27 °F | -2.777778 |
| 28 °F | -2.222222 |
| 29 °F | -1.666667 |
| 30 °F ← | -1.111111 |
| 32 °F | 0 |
| 35 °F | 1.666667 |
| 36 °F | 2.222222 |
| 37 °F | 2.777778 |

## How the conversion works

The relationship is °C = (°F − 32) × 5/9. Both units measure temperature, so the conversion is a fixed formula that never changes. Temperature scales are the one common case where converting is not just multiplication — Celsius and Fahrenheit each put their zero in a different place, so an offset is applied as well as a scale factor.

## Common questions

### What is 30 °F in degrees Celsius?

30 °F is -1.111111 °C.

### How do you convert degrees Fahrenheit to degrees Celsius?

Use °C = (°F − 32) × 5/9.

## Related pages

- [Degrees Fahrenheit to degrees Celsius](https://atoneplace.net/convert/fahrenheit-to-celsius/)
- [30 °C to °F](https://atoneplace.net/convert/30-celsius-to-fahrenheit/)
- [26 °F to °C](https://atoneplace.net/convert/26-fahrenheit-to-celsius/)
- [27 °F to °C](https://atoneplace.net/convert/27-fahrenheit-to-celsius/)
- [28 °F to °C](https://atoneplace.net/convert/28-fahrenheit-to-celsius/)
- [29 °F to °C](https://atoneplace.net/convert/29-fahrenheit-to-celsius/)
- [32 °F to °C](https://atoneplace.net/convert/32-fahrenheit-to-celsius/)
- [35 °F to °C](https://atoneplace.net/convert/35-fahrenheit-to-celsius/)
- [36 °F to °C](https://atoneplace.net/convert/36-fahrenheit-to-celsius/)
- [37 °F to °C](https://atoneplace.net/convert/37-fahrenheit-to-celsius/)

## 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/)