Free online calculators

Estimates 5G NR peak throughput from bandwidth, modulation and MIMO layers.

Converts digital codes to analog output voltage for 8-bit and 10-bit DACs.

Gives Acme thread dimensions and tolerances per ASME B1.5.

Computes adjacent channel power ratio from channel and adjacent power.

Converts between ADC counts and input voltage for a given resolution and reference.

Gives exact age in years, months, days, hours and minutes from a birth date.

Calculates the inductance of an air-core coil from its winding dimensions.

Computes inductance or turns for an air-cored coil.

Computes dice roll probability distributions using a small scripting language.

Reads AVR fuse bytes into settings or builds fuse values and avrdude options.

Lists American Wire Gauge diameter, area and resistance per length.

Computes cone angles and dimensions for a pair of bevel gears.

Shifts a number left or right by n bits and shows the binary result.

Evaluates bitwise operations such as AND, OR, XOR and shifts and shows the bits.

Sizes the base resistor so a bipolar transistor saturates as a switch.

German-language calculator for net income from gross salary in 2026.

German-language salary calculator showing what remains after taxes and contributions.

Portuguese-language loan and financing calculator.

Brazilian-Portuguese percentage calculator.

Estimates Canadian income tax, bracket and marginal rate for 2026.

Canadian income tax estimate by province, showing RRSP effects and marginal rates.

Finds stress and deflection of a cantilever beam under multiple loads and moments.

Decodes three-digit capacitor markings such as 104 into picofarads and microfarads.

Recommends clearance hole sizes for inch bolts, screws and studs.