7 calculators
Angle & Rotation
Convert between degrees, radians, gradians, and rotational speed units.
Calculators
-
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.
Related categories
Measurement
Convert between metric and imperial measurement units.
Speed
Convert between mph, km/h, m/s, knots, and other speed units.
Time & Duration
Convert time durations between seconds, minutes, hours, days, weeks, and years.
Digital
Convert digital storage and data transfer units.