Room temperature usually means a comfortable indoor air temperature, typically around 20–22 °C (68–72 °F), with many people informally treating about 21 °C (70 °F) as the sweet spot. In broader definitions (like dictionaries and lab or medical contexts), room temperature can mean any temperature roughly in the 15–25 °C (59–77 °F) range that is suitable for human occupancy or standard experiments.

Quick Scoop: What Is “Room Temp”?

When people say “leave it at room temp,” they almost never mean a single exact number. They’re talking about a band of “comfy” temperatures where you’re not noticeably hot or cold in normal indoor clothes.

Common practical ranges:

  • Everyday comfort at home: about 20–22 °C (68–72 °F).
  • Typical “rough” definition in recipes or casual talk: ~18–24 °C (64–75 °F).
  • Formal ranges in references and lab/medical contexts: 15–25 °C (59–77 °F).

So if you see “room temp” in:

  • Cooking/baking : Think cool–moderate, not from the fridge and not warm from the stove, usually in that 20–22 °C band for ingredients like butter or eggs.
  • Science/industry : They often specify a standard like 20–25 °C or use an exact “standard ambient” of 25 °C for consistency.

In short: “Room temp” isn’t a magic fixed number, but in most modern indoor settings it’s roughly 21 °C (70 °F), with a reasonable wider comfort zone of about 15–25 °C (59–77 °F) depending on the context.

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