Most definitions put “room temperature” at about 20–22 °C , with 21 °C often taken as a convenient single value.

Quick Scoop: What is room temp in Celsius?

When people say “bring it to room temperature” (for a room, food, or lab work), they usually mean a comfortable indoor range for humans.

  • Common range in many dictionaries: 20–22 °C.
  • Often simplified in science/chemistry labs to 25 °C as a standard “room temp” for calculations and tables.
  • Broader human-comfort range sometimes quoted: 15–25 °C, depending on climate, clothing, and local habits.

In everyday life, if your thermostat is around 20–22 °C, most people would casually call that “room temperature.”

Why it’s not one exact number

There’s no single worldwide law that fixes room temperature; it’s more of a comfort zone than a strict constant.

  • Dictionaries and standards groups pick a narrow band (often 20–22 °C) to keep things clear.
  • Homes and offices can be set lower or higher based on energy saving, season, and personal preference, yet people still call it “room temp.”

A neat example: many scientific calculations assume 25 °C as “room temperature” even though typical homes are often set a bit cooler.

TL;DR: If you need a quick number, use 21 °C for everyday use and 25 °C if you’re following the common scientific convention.

Information gathered from public forums or data available on the internet and portrayed here.