-45°F to Celsius

-45°F is -42.8°C (230.37 K). -45°F equals about -42.8°C. This temperature is bitterly cold — typical of deep polar winter or industrial freezers. Convert carefully for weather reports and equipment ratings.

Fahrenheit to Celsius

Instant two-way conversion with Kelvin and a live scale.

Fahrenheit°F

°F

Type to convert · Enter copies · Ctrl/⌘S swaps

Celsius°C

-42.8°C

Celsius

-42.8 °C

Fahrenheit

-45.0 °F

Kelvin

230.4 K

Formula · worked example

°C = (-45 − 32) × 5/9 = -42.8

Worked example

°C = (-45 − 32) × 5/9 = -42.8

Context: extreme cold. Reverse lookup: -42.8°C to Fahrenheit.

Nearby Fahrenheit values

Quick hops around -45°F

Fahrenheit	Celsius
-50°F	-45.6°C
-49°F	-45.0°C
-48°F	-44.4°C
-47°F	-43.9°C
-46°F	-43.3°C
-45°F	-42.8°C
-44°F	-42.2°C
-43°F	-41.7°C
-42°F	-41.1°C
-41°F	-40.6°C
-40°F	-40.0°C

More tools: Fahrenheit to Celsius · Celsius to Fahrenheit · Body temperature