# Redondear | .floor - convertir

Sun Oct 10 2021 22:07:47 GMT+0000 (Coordinated Universal Time)

Saved by @ianvalentino #javascript

```/* The forecast today is 293 Kelvin */
const kelvin = 300;
/* We convert Kelvin to Celsius; */
/* Celsius is 273 degrees less than Kelvin */
const celsius = kelvin - 273;
/* We convert Celsius to Fahrenheit using a equation */
let fahrenheit = celsius * (9/5) + 32
/* .floor() method from the built-in Math object to round down the Fahrenheit temperature */
fahrenheit = Math.floor(fahrenheit);

let newtonscale = celsius * (33/100);

newtonscale = Math.floor(newtonscale);

console.log(`The temperature is \${fahrenheit} degrees Fahrenheit.`);

console.log(`The temperature Newton is \${newtonscale} degrees.`);```
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Deep in his mountain-side meteorology lab, the mad scientist Kelvin has mastered weather prediction. Recently, Kelvin began publishing his weather forecasts on his website. However there’s a problem: All of his forecasts describe the temperature in Kelvin. With our knowledge of JavaScript, let’s convert Kelvin to Celsius, then to Fahrenheit.