Construction & Electrical Calculators

Yards, bags, blocks, bricks, rebar, mortar, and grout for slabs, footings, and walls.

Tons and cubic yards of gravel, base rock, sand, rip rap, loam, and mulch.

Cut and fill, excavation slopes, asphalt tons, and driveway costs.

Percent, ratio, and degree slopes, ramps, elevations, and square layouts.

Pipe fall, flow, head loss, runoff, and tank, pool, and pond volume.

Beam reactions, bending stress, deflection, and soil bearing pressure.

Deck boards, balusters, fence posts, sheds, coops, and lawns.

Risers, treads, spiral stairs, miter cuts, arches, and ladder angles.

Bolt torque, threads, spindle speed, bend allowance, and welds.

Square feet, square yards, cubic yards, cost per foot, and FAR.

Tile, flooring boxes, drywall, paint, siding, trim, and install cost.

Pitch, rafters, trusses, roof squares, snow load, and chimneys.

Board feet, studs, plywood, joist spans, headers, and wood weight.

Weight of steel plate, bar, beams, pipe, aluminum, and glass.

AC tons, BTUs, heat loss, CFM, duct sizing, and R-value.

Wire size, ampacity, voltage drop, box fill, and conduit bends.

Ohm's law, watts, kWh cost, RMS voltage, and battery runtime.

Full-load amps, speed, torque, kVA, and fault current.

Color codes, parallel networks, reactance, and time constants.

Op-amp gain, hysteresis, 555 timing, and bandpass design.

Microstrip and stripline impedance, trace width, and crosstalk.

EIRP, path loss, link margin, noise figure, and patch antennas.

VSWR, attenuator pads, matching, dividers, and waveguide.

Wavelength, decibels, skin depth, refraction, and beam power.