Unit Converters

Specialized Converters

• Land and Surveying Unit Converter

  Convert land areas and survey lengths without mixing dimensions or foot definitions.

• Machining Surface Speed Calculator

  Calculate SFM or m/min from RPM and diameter, or solve back to spindle RPM.

• Print and Paper Size Converter

  Compare ISO, North American, and common photo print dimensions in mm, cm, and inches.

• Fuel Economy Unit Converter

  Convert US mpg, imperial mpg, km/L, and L/100 km without mixing gallon sizes.

• Nautical and Aviation Unit Converter

  Convert navigation distance, altitude, speed, and pressure units without mixing dimensions.

• Roof Pitch and Angle Converter

  Convert roof pitch between x:12 notation, ratio, percent slope, and degrees.

• AWG Wire Gauge Lookup

  Look up solid-wire diameter and cross-sectional area from 4/0 through 40 AWG.

• Oven Temperature Converter

  Convert recipe oven settings among Fahrenheit, Celsius, and standard Gas Marks 1–9.

• Electrical Relationships Calculator

  Derive volts, amps, ohms, and watts from any supported pair.