Celsius to Fahrenheit Chart (Printable)

Celsius to Fahrenheit chart (−50 °C to 150 °C)

Single-degree steps run from −10 °C to 50 °C, which covers everyday weather, room temperature and warm water. Outside that band the chart moves in 5° steps. Formula used: °F = °C × 9/5 + 32.

Fahrenheit to Celsius chart (−50 °F to 450 °F)

Ten-degree steps make this chart useful for both cold-weather readings and oven temperatures. Formula used: °C = (°F − 32) × 5/9.

Negative and below-zero temperatures

Below-zero numbers cause the most confusion, because “zero” means something very different on each scale. Zero Celsius is the freezing point of water; zero Fahrenheit is much colder, at −17.78 °C. That means a temperature can be below zero in Celsius but still positive in Fahrenheit: −10 °C, for example, is 14 °F.

The scales cross at −40, where −40 °C and −40 °F are the same temperature. Colder than that, the Fahrenheit number is the more negative of the two. When converting negative values by hand, keep track of the signs: (−30 − 32) × 5/9 = −62 × 5/9 = −34.44 °C.

Weather and room temperature chart

For travellers and anyone setting a thermostat, this table translates 15–35 °C into Fahrenheit with a rough description of how it feels. A comfortable indoor room temperature is usually around 20–24 °C (68–75.2 °F); bedrooms are often kept a little cooler for sleep.

“Feels” labels are general guidance for still air and moderate humidity. Humidity, wind and sun can make the same temperature feel quite different.

How to read and use these charts

Find your starting value in the left column and read across. If your number falls between two rows, you can estimate: on the Celsius chart, each 1 °C step adds 1.8 °F, and each 5 °C step adds exactly 9 °F. On the Fahrenheit chart, each 10 °F step is 5.56 °C. For an exact answer to any value, use the Celsius to Fahrenheit converter or the Fahrenheit to Celsius converter.

Teachers and students often print the Celsius chart for maths lessons: it shows clearly that the Fahrenheit column grows by 9 for every 5 Celsius degrees, which makes it a good example of a linear relationship. Plotting a few rows on graph paper gives a straight line that crosses the vertical axis at 32 — the “+ 32” in the formula.

Baking? Oven dials use rounded numbers — the oven conversion chart lists fan oven and gas mark settings.