Engineering & Units
Unit conversion and electronics calculators.
In this chapter
- E1Unit Converter264
Convert length, area, volume, mass, temperature, pressure, speed, energy, power, data, time, angle and fuel economy.
- E2Angle Converter266
Convert degrees, radians, gradians, arcminutes, arcseconds, NATO mils and turns, and to or from DMS.
- E3Data Transfer Time268
How long a file takes to move at a given speed, or the bandwidth needed to move it in time. Bits vs bytes, SI vs IEC.
- E4Resistor Colour Code270
Decode or encode 4, 5 and 6-band resistor colours, and find the nearest E6–E96 standard value.
- E5Ohm's Law Calculator272
Solve V, I, R and P from any two, size a voltage divider, or pick an LED series resistor and its power rating.
- E6PCB Trace Width274
IPC-2221 trace width for a current and temperature rise, plus trace resistance, voltage drop and power loss.
- E7Aspect Ratio Calculator276
Simplify a width and height to a ratio, or keep a ratio and solve the missing dimension.
- E8Percentage Calculator278
X % of Y, what percent X is of Y, percentage change, and increasing or decreasing by a percentage.
- E9Scientific Calculator280
Expression calculator with functions, variables, history, degree/radian modes and unit conversions.
- E10Matrix Calculator282
Add, multiply, transpose, invert and power matrices, with determinant, rank and eigenvalues. Exact fractions optional.