Daily Unit Converter

Calculator category

Science Calculators

Physics calculations for motion, forces, and energy.

About science calculators

Science calculators solve physics, chemistry, astronomy, and engineering problems — from projectile motion and thermodynamics to quantum mechanics and cosmology. Whether you're a student, educator, or curious mind, these tools bring scientific formulas to life with instant results and clear explanations.

Available calculators (35 total)

Projectile Motion Calculator

Calculate range, height, and flight time of a projectile.

Free Fall Calculator

Calculate velocity and time for an object in free fall.

Kinematic Equations Calculator

Solve motion problems using kinematic equations.

Force Calculator

Calculate force, mass, or acceleration using F = ma.

Work & Energy Calculator

Calculate work, kinetic energy, and potential energy.

Momentum & Impulse Calculator

Calculate momentum, impulse, and collision results.

Gravitational Force Calculator

Calculate gravitational force between two masses.

Pendulum Period Calculator

Calculate the period and frequency of a simple pendulum.

Wave Speed Calculator

Calculate wave speed, frequency, or wavelength.

Doppler Effect Calculator

Calculate observed frequency with Doppler shift.

Ideal Gas Law Calculator

Calculate P, V, n, or T using PV = nRT.

Heat Transfer Calculator

Calculate heat energy using Q = mcΔT.

Thermal Expansion Calculator

Calculate linear thermal expansion.

Coulomb's Law Calculator

Calculate electric force between two charges.

Photon Energy Calculator

Calculate photon energy from wavelength or frequency.

Half-Life Calculator

Calculate radioactive decay remaining.

Escape Velocity Calculator

Calculate escape velocity from a celestial body.

Boyle's Law Calculator

Calculate pressure-volume relationship at constant temperature.

Snell's Law Calculator

Calculate refraction angle at a boundary.

Lens Equation Calculator

Calculate image distance and magnification for thin lenses.

Buoyancy Calculator

Calculate buoyant force and floating conditions.

Reynolds Number Calculator

Determine flow regime (laminar/turbulent).

Molar Mass Calculator

Calculate molar mass from a chemical formula.

pH Calculator

Calculate pH from H⁺ concentration or vice versa.

Dilution Calculator

Calculate dilution using C₁V₁ = C₂V₂.

Percent Yield Calculator

Calculate reaction yield efficiency.

Significant Figures Calculator

Count and round to significant figures.

Kepler's Third Law Calculator

Calculate orbital period from semi-major axis.

Stress & Strain Calculator

Calculate mechanical stress and strain.

Bernoulli's Equation Calculator

Calculate fluid pressure, velocity, or height.

Drag Force Calculator

Calculate aerodynamic drag force.

De Broglie Wavelength Calculator

Calculate matter wavelength from momentum.

Time Dilation Calculator

Calculate relativistic time dilation.

Carnot Efficiency Calculator

Calculate maximum theoretical heat engine efficiency.

Hubble's Law Calculator

Calculate galaxy recession velocity from distance.

Understanding scientific constants

Key constants used: g = 9.81 m/s² (Earth gravity), c = 299,792,458 m/s (speed of light), G = 6.674×10⁻¹¹ N·m²/kg² (gravitational constant), h = 6.626×10⁻³⁴ J·s (Planck's constant), R = 8.314 J/(mol·K) (ideal gas constant). Results assume ideal conditions — real-world measurements may vary.

Ideal vs. real-world conditions

Most physics calculators assume ideal conditions: no air resistance, perfect vacuums, uniform gravity. Real-world results will differ due to friction, air resistance, temperature variations, and measurement uncertainty. Use these tools for learning and estimation, not precision engineering.

Browse all calculator categories