Never google “what’s 68°F in °C?” again
I’m British, my wife’s American. We live in the US. For years, almost every day, we have the same dance around the weather... “Yes, but that’s in °C”... “ok, so what is that in °F?”… So I made a little weather app. That always shows °C and °F together. No switching settings. No mental maths. Clean, minimal design with no ads. Felsius gives you instant clarity at glance.
Felsius provides a comprehensive Celsius & Fahrenheit Field Guide with articles explaining how different temperatures feel in real-world contexts and an interactive what-to-wear temperature guide
Felsius contains no ads, does not sell data to third parties, uses location only to fetch forecasts, and employs custom analytics instead of Google Analytics, providing transparent privacy practices
The app is purpose-built for expats, travelers, and mixed-unit households, with support for up to five saved locations and weather data from national agencies worldwide including NOAA, ECMWF, DWD, CMC, and others
Felsius displays Celsius and Fahrenheit simultaneously without requiring setting switches or manual conversion, allowing expats and international travelers to instantly understand weather conditions in both units at a glance
Felsius offers a clean, minimal design showing only current, hourly, and upcoming conditions with customizable unit order and colors, avoiding feature bloat while remaining free to use