Français
« Home page, calculator and conversion

Popular calculators

Temperature Conversion (Celsius, Fahrenheit)

The degree converter

The degree converter °C to °F and vice versa is easy to use.
Just enter the temperature in Celsius or Fahrenheit for a free instant conversion.

< >

Formula to convert degrees Celsius and fahrenheit

Convert Celsius to fahrenheit by using this formula: Celsius * 9/5 + 32.

To convert Fahrenheit to Celsius the equation would be: (Fahrenheit - 32) * 5/9;

About degree Fahrenheit

This unit of measurement has been created by Daniel Gabriel Fahrenheit, a German physicist and inventor. The Fahrenheit scale was invented in 1724 by considering the point where water was lightly forming ice at 30 degrees while the point of boiling of the mercury was close to 300 degrees.

This temperature scale was the primary standard until 1960 when the Celsius took his place in nearly all countries. Get more information about Fahrenheit on Wikipedia.

History of degree Celsius

The unit degree Celsius was admitted in 1948, until then used as centigrade temperature scale since 1742. The ebullition and the freezing point was originally inverted until Jean-Pierre Christin changed it in 1743. The physicist and astronomer Anders Celsius of Sweden was the inventor of that centigrade scale that considered 0 as the point temperature of boiling water and 100 as the temperature of freezing.

Fever and body temperature norms

The normal human body temperature taken with a thermometer in the mouth (or basal body temperature) is 37 ° C or 98.6 ° F.
This same average temperature taken in the rectum is higher than in the mouth, higher by a scale of 0.5 degree Celsius or +/- 1 degree Fahrenheit (0.9 degree to be exact).

When the temperature measured in the mouth rises above 37.5 degrees Celsius (or 99.5 ° F), 38 degrees Celsius (100.4 ° F) in the rectum, it can be considered fever.

When the fever reaches 40 ° C or 104 ° F, it is considered a major health problem

Should you write celsius or celcius?

It's well known that celsius is often misspelled "celcius", but it's only a typo. n fact, this unit was named after the name of the scientist Anders Celsius the correct spelling is Celsius. It's only a repetition of the first letter "C" that result in this error.

Special Fact

The conversion of -40, or minus 40 from Celsius to Farenheit gives exactly the same result, -40.

Chart of normal temperature changes in humans body

From the lowest thermometer reading to the highest with the description of the human body part where the thermometer is used.

Body part Normal variation of temperature (Celsius and Fahrenheit)
Mouth 35.5 °C to 37.5 °C (95.9 °F to 99.5 °F)
Under armpit (or axillary) 36.5 °C to 37.5 °C (97.8 °F to 99.5 °F)
Ear (tympanic) 35.8 °C to 38.0 °C (96.4 °F to 100.4 °F)
Rectum (or rectal) 36.6 °C to 38.0 °C (97.9 °F to 100.4 °F)

Temperature conversion table

Celsius (°C) Fahrenheit (°F)
3595
35,195,18
35,295,36
35,395,54
35,495,72
35,595,9
35,696,08
35,796,26
35,896,44
35,996,62
3696,8
36,196,98
36,297,16
36,397,34
36,497,52
36,597,7
36,697,88
36,798,06
36,898,24
36,998,42
3798,6
37,198,78
37,298,96
37,399,14
37,499,32
37,599,5
37,699,68
37,799,86
37,8100,04
37,9100,22
38100,4
38,1100,58
38,2100,76
38,3100,94
38,4101,12
38,5101,3
38,6101,48
38,7101,66
38,8101,84
38,9102,02
39102,2
39,1102,38
39,2102,56
39,3102,74
39,4102,92
39,5103,1
39,6103,28
39,7103,46
39,8103,64
39,9103,82
40104
40,1104,18
40,2104,36
40,3104,54
40,4104,72
40,5104,9

Temperature conversions, Excel formula

Celsius to Fahrenheit

You have a temperature in Celsius (ex 42 degrees) in A1 in Excel. You want to convert it to Fahrenheit in B1 rounded to 2 decimals.

Cell B1: =ROUND(A1*9/5+32, 2)
Cell B1: = 109.40

Fahrenheit to Celsius

Enter a degree in Fahrenheit (ex 100) in case A1 in Excel. You want to get the make the conversion of Celsius in B1 rounded to 2 decimals.

Cell B1: =ROUND((A1 - 32) * 5/9, 2)
Cell B1: = 37.78

Calculators

Canada sales tax

2023

2022

2014 to 2021

2021

2020

2019

2018

2017

2016

2015

2014

Coronavirus COVID-19

For employee and individuals

For businesses

Ontario

GST/HST remittance calculator

Carbon tax rebate

2023

2022

2020 to 2021

2021

2020

United Kingdom (UK) sales tax

2023

2022

2015 to 2021

2021

2020

2019

2018

2017

2016

2015

France VAT

2015-2023

Australia GST

2023

2022

2015 to 2021

2021

2020

2019

2018

Income taxes in Canada

Tax calculators

Alberta (AB)
British Columbia (BC)
Nova Scotia (NS)
Ontario
Prince Edward Island (PEI)
Québec

RRSP, TSFA annuities and insurance

CPP
RRSP
TSFA
Employment insurance
OAS, GIS, Allowances
Basic personal amount
2012 to 2021

Tax calculators

RRSP, annuities and insurance

Paypal Fees and commission

Paypal Canada

Salary and Work

Gross to net income (salary)

2023
2022
2021
2020
2019
2018

Minimum wage annual salary

2023
2022
2016 to 2021
2021
2020
2019
2018
2017
2016

Other

Math calculator

Other calculator

Conversion / Converter

Conversion tools

Unit converters

Popular pages

Newsletter

Keep up to date!
Quarterly newsletter to keep up with changes in calculations / rates and improvements.

First Name*

Last Name*

Contact us

For questions, comments or suggestions, or if you notice a problem of calculation / conversion, please contact info@calculconversion.com.

No warranty is made as to the accuracy of the data provided. Calcul Conversion can not be held responsible for problems related to the use of the data or calculators provided on this website. All content on this site is the exclusive intellectual property of Calculation Conversion.

Calculators and conversion tools offered by Web agency telorDesign

By continuing your navigation on Calcul Conversion or by clicking on the close button you accept the use of cookies. x