Radians Calculator
Radian to degree Converter works out Converted value and Unrounded result from Value, Reading and Ruler divisions per inch. The default figures on this page give converted value of 57.29578; change any entry and the result, the working and the sources update together.
Your figures
Updates as you typeHow this is worked out
2 steps
- 1 rad = 57.2957795131 deg
- 1 x 57.2957795131 = 57.29577951 deg
Its 12 worked examples are re-run on every release, last on 15 September 2026. What changed
Sources and references
2 sources
What the Radian to degree Converter calculates
Converts a quantity between any two units of the same physical family using exact SI-derived factors.
How to use this Radian to degree Converter
Enter Value, Reading, Ruler divisions per inch and Feet. Converted value updates as you type. Change one figure at a time to see what drives the result.
How the result is worked out
Open “How this is worked out” beside the result for the step-by-step calculation behind Converted value, Unrounded result and Conversion.
The method follows NIST Special Publication 811, Guide for the Use of the International System of Units and BIPM, The International System of Units (SI Brochure).
Results are general information, not financial, tax, legal, medical or engineering advice. Check any decision that matters with a qualified professional.
See something wrong? Report a problem with this calculator
Frequently asked questions
Is 1 radian 180 degrees?
Converts a quantity between any two units of the same physical family using exact SI-derived factors. On the figures this page opens with — value 1 — the converted value is 57.29578. Put your own figures in their place and the working updates beside the result.
How do I convert 1 radian to degrees?
Converts a quantity between any two units of the same physical family using exact SI-derived factors. Open “How this is worked out” beside the result to see each step for your own figures.
Is 1 radian equal to 360 degrees?
It needs Value, Reading, Ruler divisions per inch, Feet, Inches and Significant figures. Nothing else is required, and the figures stay in your browser.
Is radians to degrees 180 pi?
The result gives Converted value, Unrounded result, Conversion, Reading, Multiply by and Reverse conversion, each labelled with its unit so the figure can be read on its own.
How do I convert 1 radian to a degree?
The page opens with worked default figures: converted value of 57.29578. Replace them with your own and every figure updates as you type.
What degree is 1 radian equal to?
Converts a quantity between any two units of the same physical family using exact SI-derived factors. On this page it is computed from Value, Reading and Ruler divisions per inch and shown as Converted value, Unrounded result and Conversion.