Celsius to Fahrenheit converter

A simple converter from Celsius to Fahrenheit and vice versa.

Convert Fahrenheit to Celsius:

The toCelsius(f, round) function takes the Fahrenheit temperature f as a number or as a string (if string, the string must start with a number), converts it and rounds to the round number of decimal digits. By default it rounds to the nearest integer.

const { toCelsius } = require('celsius');

toCelsius(100); // 38
toCelsius(100, 3); // 37.778
toCelsius('105.981 degrees F', 5); // 41.10056

Convert Celsius to Fahrenheit:

The toFahrenheit(c, round) function takes the Celsius temperature c as a number or as a string (if string, the string must start with a number), converts it and rounds to the round number of decimal digits. By default it rounds to the nearest integer.

const { toFahrenheit } = require('celsius');

toFahrenheit(36); // 97
toFahrenheit(36.68, 3); // 98.024
toFahrenheit('-40.691 degrees C', 5); // -41.24380

Append the °F or °C automatically

Use the functions toCelsiusFmt() and toFahrenheitFmt() with the same parameters to return a string containing the converted number and the characters °C or °F respectively.