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Unit Converters Converter
Fixed conversion factors, reviewed October 2026 — exact SI and customary ratios, not a calibrated instrument or legal-for-trade measure.
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A right angle is 90° and π/2 radians (about 1.5708 rad), because π rad = 180° exactly in this converter. Roof pitch, stair slope, and school trigonometry all start from that pair. Surveyors sometimes use gradians (400 gon in a circle); those are not in the unit list here — only degrees and radians.
π radians = 180° exactly here. Gradians, slope percent, and roof pitch in 12ths are not on this list. Survey and CNC work needs the instrument’s own angular system, not a homework conversion.
It covers degrees and radians only — no gradians, slope percent, or roof-pitch-in-12ths — and it is not a surveyor's instrument or a CNC controller.
Static conversion factors — not for precision metrology.
π radians, about 3.1416. 360° is 2π rad.
Instruments apply temperature, calibration, and rounding rules this converter does not. For everyday conversions the factors here are exact; for certification, use calibrated equipment.
Where both exist — such as gallons — the unit list names each, so pick the one you mean.
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