15 calculators
Physics
Density, kinetic energy, half-life, acceleration, ideal gas, and mechanics calculators.
Calculators
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Acceleration Calculator
Calculate linear acceleration, initial or final velocity, or time from the kinematic equation a = Δv ÷ t, with g-force output and distance-travelled estimate.
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Angular Velocity Calculator
Calculate angular velocity, rotational frequency, period, linear speed, or radius for circular motion using the relationships ω = 2πf = 2π/T = v/r.
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Buoyancy Calculator
Calculate buoyant force on a submerged object from fluid density and displaced volume using Archimedes' principle F_b = ρgV, with float/sink determination.
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Density Calculator
Calculate density, mass, or volume from the other two known values using the density = mass ÷ volume relationship, with multiple unit options and reference material comparisons.
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Dew Point Calculator
Calculate dew point temperature from air temperature and relative humidity using the Magnus formula, or solve for relative humidity from dew point.
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Half-Life Calculator
Calculate remaining quantity, elapsed time, half-life, or initial quantity in radioactive or exponential decay using N(t) = N₀ × (½)^(t ÷ t½), with decay constant output.
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Heat Index Calculator
Estimate apparent temperature from air temperature and relative humidity using the NWS Rothfusz heat index formula, with heat danger category and safety guidance.
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Ideal Gas Law Calculator
Solve for pressure, volume, moles, or temperature in the ideal gas equation PV = nRT, with multiple unit options and mass estimates for common gases.
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Impact Force Calculator
Estimate average impact force from object mass and velocity using either stopping distance (work-energy theorem) or stopping time (impulse-momentum theorem).
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Kinetic Energy Calculator
Calculate kinetic energy, mass, or velocity from the other two using KE = ½mv², with energy unit conversions and equivalent drop-height context.
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Mass Calculator
Calculate mass, density, or volume from the other two known values using the relationship mass = density × volume, with multi-unit support.
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Terminal Velocity Calculator
Estimate terminal velocity from mass, drag coefficient, cross-sectional area, and fluid density using v_t = √(2mg ÷ ρAC_d), with presets for common objects and fluids.
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Thermal Expansion Calculator
Calculate linear, area, or volume expansion of materials due to temperature change using expansion coefficients, with presets for steel, aluminium, glass, and more.
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Weight Force Calculator
Calculate gravitational weight force from mass and local gravitational acceleration (W = mg), with planet presets for Earth, Moon, Mars, and more.
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Wind Chill Calculator
Estimate apparent temperature from air temperature and wind speed using the NOAA/Environment Canada wind chill formula, with frostbite risk time and danger category.