Newest Calculators

Chemistry Calculators

Buoyancy Calculator

Buoyancy Calculator finds buoyant force, object weight, net force and float, sink or neutral behavior from mass, displaced volume, density and gravity.

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Chemistry Calculators

Pressure Calculator

Pressure Calculator finds pressure from force and surface area, then converts results across Pa, kPa, MPa, bar, psi and atm for quick, accurate results.

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Chemistry Calculators

Torque Calculator

Torque Calculator solves torque, force or lever arm from distance and angle, with unit conversions for tools, fasteners, motors and mechanical systems.

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Chemistry Calculators

Impulse Calculator

Impulse Calculator finds impulse from force and time or mass and velocity change, showing momentum change, direction, units and clear calculation steps.

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Chemistry Calculators

Momentum Calculator

Momentum Calculator finds momentum, mass or velocity using p = mv, with unit conversions, direction, kinetic energy and clear physics results in seconds.

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Electrical Calculators

Power Factor Calculator

Calculate power factor, phase angle, kVA, kVAR, and correction requirements using real power, apparent power, reactive power, voltage, or current.

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Electrical Calculators

kVA-to-Amps Calculator

kVA to Amps Calculator converts VA, kVA or MVA to amps for single- and three-phase AC using voltage, phase type and the appropriate electrical formula.

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Electrical Calculators

Three-Phase Power Calculator

Calculate three-phase real power, apparent power, reactive power, current, or voltage using line values and power factor with instant results.

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Electrical Calculators

Amps-to-Watts Calculator

Convert amps to watts for DC, single-phase AC, and three-phase AC circuits using voltage and power factor with instant formula-based results.

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Electrical Calculators

Watts-to-Amps Calculator

Convert watts to amps for DC, single-phase AC, and three-phase AC circuits using voltage and power factor with clear formulas and instant results.

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Construction and Home

Topsoil Calculator

Estimate topsoil volume, bags, cubic yards, tonnes, truckloads, waste, and material cost for lawns, gardens, raised beds, or landscaping projects.

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Construction and Home

Asphalt Calculator

Asphalt Calculator helps you quickly estimate tons, volume, waste, truckloads, and material cost for driveways, roads, parking lots, and paving projects.

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Construction and Home

Deck Material Calculator

Estimate deck boards, joists, fasteners, railing posts, waste, stock lengths, and material cost for rectangular or custom-size decking projects.

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Construction and Home

Sod Calculator

Sod Calculator estimates lawn area, rolls, pallets, waste and total cost for any lawn shape, helping you order confidently and get your new lawn right the first time.

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Construction and Home

Garden Soil Calculator

Garden Soil Calculator instantly estimates cubic yards, bags, settling allowance and cost for raised beds and planters, so you buy the right amount and waste less.

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Construction and Home

Stair Calculator

Calculate stair risers, treads, total run, stringer length, angle, landing size, material area, and optional project cost in metric or imperial units.

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Construction and Home

Paver Calculator

Paver Calculator estimates pavers, patio area, waste and project cost so you can buy the right amount, reduce waste and avoid costly overordering.

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Construction and Home

Retaining Wall Calculator

Retaining Wall Calculator estimates blocks, cap units, base gravel, drainage stone, fabric, waste and material cost so you can plan smarter and avoid overbuying.

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Construction and Home

Insulation Calculator

Insulation Calculator helps you estimate area, R-value thickness, packages, waste, material and labor costs so you can plan smarter and avoid costly overbuying.

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Construction and Home

Rebar Calculator

Estimate rebar quantity, spacing, stock bars, total length, weight, waste, and cost for slabs, walls, beams, stirrups, or custom projects.

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Construction and Home

Air Conditioner Size Calculator

Find the right AC size for any room. Calculate BTU and tonnage using room area, ceiling height, climate, sunlight, insulation, and occupants.

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Construction and Home

Gutter Calculator

Gutter Calculator estimates gutter size, downspouts and roof runoff from roof area, pitch and rainfall, helping you avoid overflow and costly water damage.

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Construction and Home

Siding Calculator

Siding Calculator estimates wall area, siding squares, panels, cartons and project cost so you can order with confidence and keep your project on track.

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Construction and Home

Lumber Calculator

Lumber Calculator helps you estimate board feet, wood volume, pieces, waste, and material cost so you can buy smarter and avoid costly overordering.

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