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°C to °F Converter | Celsius to Fahrenheit (°C → °F)

°C to °F Converter | Celsius to Fahrenheit (°C → °F)

Celsius to Fahrenheit Converter

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Tip: type a temperature (negatives like -40 work) and pick the direction. Several values (new line, space or semicolon) and decimals like 12.5 or 12,5 also work.
Output appears here
 
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Example 1: Convert 180 Celsius to Fahrenheit

StepCalculationResult
1. Multiply by 9/5180 x 9 / 5324
2. Add 32324 + 32356 F
3. Round to 2 decimals356 F356.00 F
4. Add 273.15 for Kelvin180 + 273.15453.15 K
180 C = 356 F = Gas Mark 4, the standard baking temperature.

Example 2: Convert 37 Celsius to Fahrenheit

StepCalculationResult
1. Multiply by 9/537 x 9 / 566.6
2. Add 3266.6 + 3298.6 F
3. Round to 2 decimals98.6 F98.60 F
4. Add 273.15 for Kelvin37 + 273.15310.15 K
37 C = 98.6 F, the average human body temperature.

Celsius to Fahrenheit Reference Matrix (-20 C to 100 C)

Celsius (°C)Fahrenheit (°F)Kelvin (K)Note
-20-4.00253.15Very cold winter day
-155.00258.15
-1014.00263.15
-523.00268.15
032.00273.15Water freezes
541.00278.15
1050.00283.15Cool spring day
1559.00288.15
2068.00293.15Room temperature
2271.60295.15Comfortable indoor temperature
2577.00298.15Warm day
3086.00303.15Hot day
3595.00308.15Very hot day
3798.60310.15Average body temperature
40104.00313.15Heat wave
45113.00318.15
50122.00323.15
60140.00333.15Hot water at the tap (scald risk)
70158.00343.15
80176.00353.15
90194.00363.15
100212.00373.15Water boils (sea level)

Oven Baking and Cooking Temperature Conversion (100 C to 250 C)

Celsius (°C)Fahrenheit (°F)Gas MarkOven Description
100212Below Gas Mark 1/4Very cool
110230Gas Mark 1/4Very cool
120248Between Gas Mark 1/4 and 1/2Very cool
130266Gas Mark 1/2Very cool
140284Gas Mark 1Cool
150302Gas Mark 2Cool
160320Gas Mark 3Warm
170338Between Gas Mark 3 and 4Between warm and moderate
180356Gas Mark 4Moderate
190374Gas Mark 5Moderately hot
200392Gas Mark 6Fairly hot
210410Between Gas Mark 6 and 7Between fairly hot and hot
220428Gas Mark 7Hot
230446Gas Mark 8Very hot
240464Gas Mark 9Very hot
250482Above Gas Mark 9Very hot

Gas Mark Scale (Standard Oven Settings)

Gas MarkCelsius (°C)Exact Fahrenheit (°F)Common Oven Dial (°F)Oven Description
Gas Mark 1/4110230225Very cool
Gas Mark 1/2130266250Very cool
Gas Mark 1140284275Cool
Gas Mark 2150302300Cool
Gas Mark 3160320325Warm
Gas Mark 4180356350Moderate
Gas Mark 5190374375Moderately hot
Gas Mark 6200392400Fairly hot
Gas Mark 7220428425Hot
Gas Mark 8230446450Very hot
Gas Mark 9240464475Very hot
Gas mark charts round to the nearest dial setting, so 180 C is exactly 356 F but the dial says 350 F. Fan ovens usually run about 20 C cooler than the conventional setting.

Weather Temperature Guide (Ambient Feel)

FeelCelsius (°C)Fahrenheit (°F)
FreezingBelow 0Below 32
Cold0 to below 1032 to below 50
Cool10 to below 1850 to below 64.4
Mild18 to below 2564.4 to below 77
Warm25 to below 3077 to below 86
Hot30 to below 3586 to below 95
Very hot35 and above95 and above
A general guide for outdoor air temperature. Humidity and wind change how it feels.

Celsius to Fahrenheit Chart (-40 C to 100 C)

Celsius (°C)Fahrenheit (°F)Kelvin (K)
-40-40.00233.15
-39-38.20234.15
-38-36.40235.15
-37-34.60236.15
-36-32.80237.15
-35-31.00238.15
-34-29.20239.15
-33-27.40240.15
-32-25.60241.15
-31-23.80242.15
-30-22.00243.15
-29-20.20244.15
-28-18.40245.15
-27-16.60246.15
-26-14.80247.15
-25-13.00248.15
-24-11.20249.15
-23-9.40250.15
-22-7.60251.15
-21-5.80252.15
-20-4.00253.15
-19-2.20254.15
-18-0.40255.15
-171.40256.15
-163.20257.15
-155.00258.15
-146.80259.15
-138.60260.15
-1210.40261.15
-1112.20262.15
-1014.00263.15
-915.80264.15
-817.60265.15
-719.40266.15
-621.20267.15
-523.00268.15
-424.80269.15
-326.60270.15
-228.40271.15
-130.20272.15
032.00273.15
133.80274.15
235.60275.15
337.40276.15
439.20277.15
541.00278.15
642.80279.15
744.60280.15
846.40281.15
948.20282.15
1050.00283.15
1151.80284.15
1253.60285.15
1355.40286.15
1457.20287.15
1559.00288.15
1660.80289.15
1762.60290.15
1864.40291.15
1966.20292.15
2068.00293.15
2169.80294.15
2271.60295.15
2373.40296.15
2475.20297.15
2577.00298.15
2678.80299.15
2780.60300.15
2882.40301.15
2984.20302.15
3086.00303.15
3187.80304.15
3289.60305.15
3391.40306.15
3493.20307.15
3595.00308.15
3696.80309.15
3798.60310.15
38100.40311.15
39102.20312.15
40104.00313.15
41105.80314.15
42107.60315.15
43109.40316.15
44111.20317.15
45113.00318.15
46114.80319.15
47116.60320.15
48118.40321.15
49120.20322.15
50122.00323.15
51123.80324.15
52125.60325.15
53127.40326.15
54129.20327.15
55131.00328.15
56132.80329.15
57134.60330.15
58136.40331.15
59138.20332.15
60140.00333.15
61141.80334.15
62143.60335.15
63145.40336.15
64147.20337.15
65149.00338.15
66150.80339.15
67152.60340.15
68154.40341.15
69156.20342.15
70158.00343.15
71159.80344.15
72161.60345.15
73163.40346.15
74165.20347.15
75167.00348.15
76168.80349.15
77170.60350.15
78172.40351.15
79174.20352.15
80176.00353.15
81177.80354.15
82179.60355.15
83181.40356.15
84183.20357.15
85185.00358.15
86186.80359.15
87188.60360.15
88190.40361.15
89192.20362.15
90194.00363.15
91195.80364.15
92197.60365.15
93199.40366.15
94201.20367.15
95203.00368.15
96204.80369.15
97206.60370.15
98208.40371.15
99210.20372.15
100212.00373.15

Technical Q&A / FAQ Matrix

Technical Developer QuestionExact Solution & Code Snippet
How do I convert Celsius to Fahrenheit in JavaScript?(180 * 9 / 5 + 32).toFixed(1) // 356.0
How do I convert Celsius to Fahrenheit in Python?round(180 * 9 / 5 + 32, 1) # 356.0
How do I convert Celsius to Fahrenheit in Go?fmt.Println(180.0*9/5 + 32)
How do I convert Celsius to Fahrenheit in Java?double f = 180 * 9 / 5.0 + 32;
How do I convert Celsius to Fahrenheit in C#?double f = 180 * 9 / 5.0 + 32;
How do I convert Celsius to Fahrenheit in PHP?echo 180 * 9 / 5 + 32;
How do I convert Celsius to Fahrenheit in Rust?let f = 180.0 * 9.0 / 5.0 + 32.0;
How do I convert Celsius to Fahrenheit on Linux?awk 'BEGIN { print 180 * 9 / 5 + 32 }'
How do I convert Fahrenheit to Celsius in JavaScript?((356 - 32) * 5 / 9).toFixed(1) // 180.0
How do I convert Fahrenheit to Celsius in Python?round((356 - 32) * 5 / 9, 1) # 180.0
How do I convert Celsius to Fahrenheit by hand?Multiply by 9/5 (or by 1.8), then add 32. For example 180 C: 180 x 1.8 = 324, and 324 + 32 = 356 F.
How do I convert Fahrenheit to Celsius by hand?Subtract 32, then multiply by 5/9. For example 356 F: 356 - 32 = 324, and 324 x 5 / 9 = 180 C.
How do I convert Celsius to Kelvin?Add 273.15. For example 180 C = 453.15 K.
What is 180 C in Gas Mark and Fahrenheit?180 C is Gas Mark 4, which is 356 F exactly. Oven dials usually list it as 350 F.
Why is -40 the same in Celsius and Fahrenheit?Set C = F in the formula and solve. -40 x 9 / 5 + 32 = -40, so -40 C = -40 F is the only point where both scales match.
Why does code show 97.88000000000001 for 36.6 C?Floating-point numbers store binary approximations of decimals. Round for display, for example (36.6 * 9 / 5 + 32).toFixed(2) gives 97.88. This tool uses exact decimal math, so it never shows that error.

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