Unit conversion sounds simple — multiply by a factor, done. But remembering the exact conversion rate between Fahrenheit and Celsius, or knowing how many bits are in a hexadecimal digit, isn't something most people keep in their heads. That's where converters earn their place.

ToolFlash converters give you instant results as you type, work offline in your browser, and handle the edge cases that catch people out — like Kelvin and Rankine alongside the more familiar temperature scales. Every result is shown with sufficient decimal precision to be genuinely useful.

Which converter do you need?

Temperature Converter — Converts between Celsius, Fahrenheit, Kelvin, and Rankine instantly as you type. Useful for cooking, science, travel, and international weather comparisons. Results show four decimal places for precision.