Temperature Converter °C °F K

Temperature Converter °C °F K is a focused utility for scientists, engineers, physicists, and travelers who need several temperature scales at once. Type a value and see Celsius, Fahrenheit, Kelvin, Rankine, and Réaumur update together — no pair pickers or extra screens. The custom numeric keyboard supports negatives and decimals, and the app stays lightweight so you can convert as soon as it opens.

• Most converter apps force you to pick one pair at a time and reload when you switch units
• Scientific and engineering workflows need Celsius, Fahrenheit, Kelvin, and less common scales side by side
• Travelers and students need negatives and decimal temperatures without fighting the default keyboard

• Built a single-screen converter that updates all supported units from one input
• Added Celsius, Fahrenheit, Kelvin, Rankine, and Réaumur in one view
• Shipped a custom numeric keyboard with negative and floating-point support on the App Store in 2019

• Simultaneous conversion to °C, °F, K, °Ra, and °Ré
• No dropdown menus or unit-pair selection screens
• Custom numeric keyboard with negatives and decimals
• Lightweight — start typing as soon as the app opens
• Built for scientists, engineers, physicists, and travelers
• Published on the App Store since 2019