Sumivo · Converters
Angle Converter
Convert through one Radian (SI) baseline and round only the displayed value.
01 / CONVERT ANGLE
CONVERTED VALUE
1 ° = 0.01745329 rad
Conversion constant: 1 ° = 0.0174532925 rad
- Converted value
- 0.01745329 rad
- Baseline (rad)
- 0.01745329 rad
Calculation trace
- 1 deg → rad0.01745329 radNormalise to base unit
- 0.017453 rad → rad0.01745329 radConvert to target unit
| SOURCE | RELATION | CONVERTED |
|---|---|---|
| 1 ° | = | 0.01745329 rad |
| 5 ° | = | 0.08726646 rad |
| 10 ° | = | 0.17453293 rad |
| 25 ° | = | 0.43633231 rad |
| 100 ° | = | 1.74532925 rad |
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How it works
The input is normalised to the SI base unit (rad) using fixed NIST SP 811 conversion factors, then converted to the target unit. Same-unit conversions return the input exactly.
Assumptions & limits
- Conversion factors are the exact values published in NIST SP 811.
- Only the displayed value is rounded; the calculation keeps full precision.
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FAQ
- Why convert through a base unit?
- Normalising every unit to rad first means one small, checkable factor table covers every from/to pair without compounding rounding.
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Related calculators
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SOURCES
- Bureau International des Poids et Mesures (BIPM)The International System of Units (SI), 9th edition ↗
SI unit of angle: the radian (rad)
Accessed 2026-08-19
- National Institute of Standards and Technology (NIST)Guide for the Use of the International System of Units (SI) — NIST Special Publication 811 ↗
NIST SP 811 Appendix B plane-angle relations (degree = π/180 rad, gon = π/200 rad, arcminute, arcsecond)
Accessed 2026-08-19