Angle Converter
All Angle Conversions
radian to degreeradian to gradianradian to arcminuteradian to arcseconddegree to radiandegree to gradiandegree to arcminutedegree to arcsecondgradian to radiangradian to degreegradian to arcminutegradian to arcsecondarcminute to radianarcminute to degreearcminute to gradianarcminute to arcsecondarcsecond to radianarcsecond to degreearcsecond to gradianarcsecond to arcminute
Practical Applications
Navigation, astronomy, cartography, construction, engineering, crystallography, and practically all geometric sciences.
Historical Context
Angle measurement dates back to the ancient Babylonians and Egyptians, who developed the division of the circle into 360 degrees for astronomical and navigational purposes.
Did You Know?
The 360-degree system for the circle was probably chosen by the Babylonians due to the approximation of the solar year to 360 days and for mathematical convenience (360 has many divisors).
Common pairs of Angle
Angle Converter
Our Angle converter supports all major units used worldwide for this type of measurement, covering both metric (SI) and non-metric systems. Select any source and destination unit from the dropdowns, enter your value, and the result appears immediately. You can also adjust the number of decimal places to match your precision requirements.
All Angle conversions use standardized conversion factors defined by international scientific bodies such as the BIPM (Bureau International des Poids et Mesures) and NIST. Results are computed with full floating-point precision, so you can trust the output for technical, scientific, and everyday use.
Yes. Our Angle converter handles conversions between metric (SI) units and non-metric systems, including imperial and US customary units. Simply select the units you want to work with — the converter handles the math automatically, regardless of which system each unit belongs to.
Select the source unit in the first dropdown, type your value in the input field, then select the target unit in the second dropdown. The converted result appears instantly. You can swap the units at any time to perform the reverse conversion, and you can adjust the decimal places shown in the output.
Yes, the Angle converter is completely free, with no sign-up or registration required. It works on any device and browser — including smartphones and tablets — with no usage limits.