LogoPractical Web Tools

File Converters

  • PDF Tools
  • Image Converter
  • Video Converter
  • Audio Converter
  • Document Converter
  • eBook Converter
  • Archive Tools
  • File Tools
  • CM to Inches
  • KG to LBS
  • MPG to L/100km
  • MPH to KM/H
  • °C to °F
  • ML to Cups
  • Minutes to Hours
  • Unit Converter Hubs
  • Degrees to Radians

Calculators

  • Finance Calculators
  • Health Calculators
  • Math Calculators
  • Science Calculators
  • Other Tools

Popular Tools

  • PDF to Word
  • HEIC to JPG
  • Merge PDF
  • Fillable PDF Creator
  • Mortgage Calculator
  • BMI Calculator
  • AI Chat

AI Tools

  • AI Chat
  • AI Image Generator
  • AI Headshot Generator
  • Ebook Writer
  • AI Character Chat
  • AI Code Editor
  • Text to Speech
  • Background Removal
  • AI Document OCR
  • AI Humanizer
  • Agent Playground
  • AI Notepad
  • AI Reddit Outreach
  • Browse AI Models

Company

  • About Us
  • Blog
  • Contact
  • Request a Tool

Legal

  • Privacy Policy
  • Terms of Service
Email Support
Practical Web Tools Logo
Practical Web Tools

Free Tools — Your Files Never Leave Your Device

Practical Web Tools - Convert files & chat with AI — fully offline | Product Hunt

© 2026 Opal Emporium LLC. All rights reserved.

Privacy-first file conversion and AI chat. No accounts, no uploads, no tracking.

Kelvin to Celsius Converter

Free instant K → °C converter. No signup, no uploads — everything is calculated privately in your browser.

1 K = -272.15 celsius

1 kelvin = -272.15 celsius

Free, instant, and 100% private — every calculation runs in your browser. Nothing is uploaded.

Quick Answer

0K equals -273.15°C; the formula is °C = K − 273.15.

Key Facts

  • Formula: °C = K − 273.15.
  • Reverse: K = °C + 273.15.
  • Reference points: water freezes at 0°C / 32°F / 273.15 K and boils at 100°C / 212°F.
  • Kelvin has no degree symbol and is the SI base unit of temperature.

Kelvin to Celsius Formula

°C = K − 273.15

Example: 1 K → -272.15 °C. Type any value in the converter above to see it converted live.

Kelvin to Celsius Conversion Table

Kelvin (K)Celsius (°C)
1 K-272.15 °C
2 K-271.15 °C
5 K-268.15 °C
10 K-263.15 °C
25 K-248.15 °C
50 K-223.15 °C
100 K-173.15 °C
250 K-23.15 °C
500 K226.85 °C
1,000 K726.85 °C

Frequently Asked Questions

°C = K − 273.15. Enter the value above and the result appears instantly — the calculation runs entirely in your browser.

°C = K − 273.15. To go back the other way, apply the inverse formula — for example 0K = -273.15°C.

1 K = -272.15 °C; 10 K = -263.15 °C; 100 K = -173.15 °C. Use the full conversion table below for more reference values.

At −40 degrees: −40°C and −40°F are the same temperature. That is the only point where the two scales intersect, because the scales have different zero points and step sizes.

Related Temperature Conversions

  • Celsius to Fahrenheit
  • Celsius to Kelvin
  • Fahrenheit to Celsius
  • Fahrenheit to Kelvin
  • Kelvin to Fahrenheit
Browse all temperature converters →