Angle & Rotation

Angle Converter

Convert degrees to radians, radians to degrees, π notation, grad, turn, arcminute, arcsecond, and milliradian values with normalized angle context.

Coordinates Converter

Convert geographic coordinates between decimal degrees, DMS, decimal minutes, and WGS84 UTM zone, easting, northing, and EPSG-style projected CRS outputs.

DMS Converter

Convert decimal degrees, degrees-minutes-seconds, and degrees decimal minutes with DMS, DDM, radians, gradians.

Rise Over Run To Degrees Calculator

Convert rise over run to degrees with percent grade, radians, decimal slope, 1:N ratio, roof-pitch notation, slope length, and practical reference slopes.

Rise Over Run To Percent Slope Calculator

Convert rise over run to percent slope with grade percentage, degrees, radians, decimal slope, slope length, 1:N ratio, pitch per 12.

Rotation Speed Converter

Use the rotation speed converter to convert RPM, RPS, rad/s, deg/s, Hz, and rev/h for motors, fans, spindles, turntables, and machinery speed checks.

Slope Gradient Converter

Convert slope percent, 1:N gradient ratio, degrees, radians, decimal slope, and mm-per-metre style gradient with practical reference rows for ramps, roads.