Other Calculators
Calculation involving economics, computers, electronics etc.
Electronics
ElectronicsCable Impedance CalculatorWork out the characteristic impedance, capacitance, inductance, propagation delay, velocity factor and cut-off frequency of a coaxial cable or a twisted pair from its geometry, or design a coax backwards from the impedance you need.
ElectronicsBridge Rectifier CalculatorWork out the DC output, ripple voltage, ripple factor and diode ratings of a full-wave bridge rectifier, with or without a smoothing capacitor.
ElectronicsBreaker Size CalculatorWork out the circuit breaker amp rating a load needs. Enter amps, watts, kW or kVA with the supply voltage and phase, apply the continuous or motor duty factor, and get the next standard breaker frame plus its conductor pairing.
ElectronicsBox Fill CalculatorWork out the total box fill required by NEC 314.16 from the conductors, clamps, support fittings, device gangs and grounding conductors in an electrical box, then check it against a standard metal box or a marked volume.
ElectronicsBaud Rate CalculatorConvert between baud (symbol rate) and bit rate for any modulation, size real serial / UART throughput, and find the Nyquist and Shannon limits of a channel.
ElectronicsBattery Size CalculatorWork out the battery size you need — for a device over a set runtime, or for an off-grid solar bank — in amp-hours, for both lead-acid and lithium.
ElectronicsBattery Life CalculatorEstimate how long a battery lasts from its capacity and load. Work in milliamp-hours and current, or in watt-hours, voltage, and power, with depth of discharge and efficiency.
ElectronicsBattery Capacity CalculatorConvert battery capacity between amp-hours and watt-hours, and estimate runtime, charge time, and discharge current from the C-rate.
ElectronicsAppliance Wattage CalculatorFind an appliance's wattage and what it costs to run. Enter watts, or volts and amps, or pick a common appliance, then estimate kWh and cost per day, month, and year.
ElectronicsAmp Hour CalculatorSolve the amp-hour relationship between battery capacity, current, and time, convert amp-hours to watt-hours, and size banks with depth of discharge and C-rate.
ElectronicsAcoustic Impedance CalculatorCalculate specific acoustic impedance from density and speed of sound (z = rho c), or solve for the density or speed instead. Also finds the intensity reflection and transmission coefficients of sound at the boundary between two materials.
ElectronicsAC Wattage CalculatorSolve for AC wattage, voltage, current, or power factor in DC, single-phase, and three-phase circuits. Works as a watts-to-amps and amps-to-watts converter.
Electronics3-Phase Motor Amperage CalculatorCalculate the full-load current of a 3-phase (or single-phase) motor from its power, voltage, power factor, and efficiency, with apparent power, starting current, and NEC circuit sizing. Solve for any field.Computers
ComputersTwo's Complement CalculatorConvert a decimal number to two's complement binary and back, with a step-by-step invert-and-add-one breakdown, the hex form, the sign bit, and the value range for 4-, 8-, 12-, and 16-bit widths.
ComputersBytes to MB CalculatorConvert bytes to megabytes and back, in both decimal (MB) and binary (MiB), alongside KB, GB, TB, bits and megabits.
ComputersBytes to GB CalculatorConvert bytes to gigabytes and every other data unit, with the decimal (GB) and binary (GiB) values shown side by side.
ComputersBitwise CalculatorPerform bitwise operations on two decimal numbers - AND, OR, XOR, NAND, NOR, XNOR, NOT and shifts - with a bit-by-bit breakdown, a truth table, set-bit count and results in binary, octal, decimal and hex across 4, 8, 16 and 32-bit registers.
ComputersBit Shift CalculatorShift and rotate bits left or right on a decimal number: logical, arithmetic (sign-preserving) and circular shifts across 4, 8, 16 and 32-bit registers, with a before-and-after bit table and results in binary, octal, decimal and hex.
ComputersBinary TranslatorConvert a number between binary, octal, decimal, and hexadecimal, with bit length, byte count, and an ASCII reference for text.
ComputersBinary to Hex ConverterConvert a binary number to hexadecimal, with the decimal and octal forms, the bit and byte count, and the nibble method explained.
ComputersBinary CalculatorAdd, subtract, multiply, divide, and apply bitwise logic to binary numbers, and convert between binary, octal, decimal, and hexadecimal.
ComputersBandwidth CalculatorConvert between data units, estimate download and upload time, size a website's bandwidth, and turn a monthly data cap into a sustained speed.
ComputersAudio File Size CalculatorEstimate the size of an audio file from its length and quality, for both compressed formats like MP3 and uncompressed formats like WAV, in decimal and binary units.
ComputersAspect Ratio CalculatorFind and simplify the aspect ratio of any width and height, resize dimensions without stretching, and work out a screen's physical size from its diagonal.
ComputersAmdahl's Law CalculatorCompute parallel speedup with Amdahl's Law from the parallel fraction and processor count. See the efficiency, the maximum-speedup ceiling, a runtime estimate, and a Gustafson comparison, or solve backward for the parallel fraction.