Flash Ratio Calculator
The Flash Ratio Calculator computes the balance between flash and ambient illumination using guide number, distance, aperture, and ISO.
Physics
Explore our physics calculators to simplify complex concepts and calculations. From motion and energy to forces and waves, these tools help students, researchers, and enthusiasts solve problems accurately and efficiently.
Browse our 111 calculators to solve common problems in Physics — from quick estimates to detailed results. This hub links to our most-used tools and guides so you can get answers fast.
Start with the popular picks below, or jump into the full list for more specific use cases.
Doppler Shift Velocity Calculator
The Doppler Shift Velocity Calculator computes relative velocity from observed and emitted frequencies and wave speed, indicating whether the source approaches or recedes.
Buoyancy Factor Calculator
The Buoyancy Factor Calculator calculates the ratio of apparent to actual weight for bodies immersed in a fluid.
Amplifier Sensitivity Calculator
The Amplifier Sensitivity Calculator estimates the minimum input signal needed for a specified noise figure, bandwidth, and target SNR.
Gravity Loss Calculator
The Gravity Loss Calculator computes velocity losses from gravity during rocket ascent using thrust, mass, trajectory angle, and burn time.
Friis Equation Calculator
The Friis Equation Calculator computes received power over distance using antenna gains, frequency, and free-space path loss.
Arc Flash Incident Energy Calculator
The Arc Flash Incident Energy Calculator estimates incident energy and arc flash boundaries based on system voltage, fault current, and clearing time.
Average Retarding Force Calculator
The Average Retarding Force Calculator estimates the average retarding force from initial speed, mass, and stopping distance using the work-energy principle.
Array Gain Calculator
The Array Gain Calculator estimates beamforming gain relative to a single element using array size, element pattern, spacing, and frequency.
Energy Delay Product Calculator
The Energy Delay Product Calculator computes the energy-delay product from supplied energy and delay to assess efficiency trade-offs in systems.
Deaerator Vent Rate Calculator
The Deaerator Vent Rate Calculator estimates required steam vent rate to remove dissolved gases from feedwater based on operating conditions.
Isentropic Flow Calculator
The Isentropic Flow Calculator computes thermodynamic and flow properties for compressible, adiabatic gas flows using standard isentropic relations and assumptions.
Impedance to Voltage Converter
The Impedance to Voltage Converter measures complex load behaviour by converting impedance to voltage for precise diagnostics in laboratory and industrial applications.
Antenna Trap Calculator
The Antenna Trap Calculator calculates resonant trap inductance and capacitance for multiband dipoles from desired frequencies, wire parameters and quality factor.
Fiber Coupling Efficiency Calculator
The Fiber Coupling Efficiency Calculator estimates coupling efficiency between a Gaussian beam and a single-mode fibre given mode-field parameters.
Critical Damping Ratio Calculator
The Critical Damping Ratio Calculator calculates the damping ratio relative to critical damping from mass, stiffness, and damping coefficient inputs.
Ballistic Energy Loss over Distance Calculator
The Ballistic Energy Loss over Distance Calculator estimates retained kinetic energy along a projectile’s flight, accounting for drag, mass, velocity, and air density.
Effective Area Calculator
The Effective Area Calculator computes the instrument’s collecting area versus energy and angle, accounting for efficiency losses and absorption.
Group Index Calculator
The Group Index Calculator computes the optical group refractive index from dispersion data or wavelength-dependent refractive indices and derivatives.
Deceleration Distance Calculator
The Deceleration Distance Calculator computes stopping distance using initial and final speeds with constant deceleration, based on kinematic equations.