DC resistor-network solver
Calculate node voltages, branch currents and power for ideal resistors and DC sources.
See an example →Calculators
Calculate percentages, count calendar or working days, and convert everyday measurements.
Cutting-stock planner
Arrange one-dimensional cuts in finite stock lengths and inspect offcuts, saw kerf and unplaced pieces.
See an example →Date & working-days calculator
Count days between dates or add and subtract days, with optional weekend exclusion.
See an example →