Physics Calculators

Free physics calculators for speed, force, energy, power, density, projectile motion, and more. Calculate physical quantities and solve physics problems.

Flashover Voltage Calculator

Calculate the voltage at which electrical insulation fails and an arc jumps across a gap.

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Flashover Distance Calculator

Calculate safe electrical working distances to prevent flashover incidents. OSHA and IEEE compliant safety calculator.

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Speed Calculator

Calculate speed, velocity, distance, and time using kinematic equations.

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Force Calculator

Calculate force, mass, and acceleration using Newton's second law of motion.

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Flow Ratio Calculator

Calculate flow ratios to compare two flow rates and understand flow balance for plumbing, HVAC, and manufacturing.

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Energy Calculator

Calculate kinetic energy, potential energy, and work done by forces.

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Power Calculator

Calculate power, work, and time using power equations.

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Density Calculator

Calculate density, mass, and volume of substances.

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Projectile Motion Calculator

Calculate trajectory, range, and maximum height for projectile motion.

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Flame Speed Calculator

Calculate how fast flames travel through combustible mixtures with real-world examples.

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Final Distance Calculator

Calculate final distance with constant speed or acceleration.

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Final Gas Pressure Calculator

Calculate final gas pressure using Boyle's, Gay-Lussac's, and Combined Gas Laws.

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Final Mass Calculator

Calculate final mass after adding or removing mass with unit conversion.

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Flow Resistivity Calculator

Calculate flow resistivity to understand how materials resist air or fluid flow. Perfect for acoustics, insulation, and porous media analysis.

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Force of Moving Water Calculator

Calculate the force of moving water on surfaces and objects. Understand water flow impact for safety, engineering, and flood planning.

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Forced Convection Coefficient Calculator

Calculate forced convection heat transfer coefficients for air, water, and other fluids. Understand heat transfer efficiency in forced flow conditions.

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Fresnel Lens Temperature Calculator

Calculate estimated temperature at Fresnel lens focal point. Includes safety warnings and material comparisons.

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Friction Distance Calculator

Calculate stopping distance due to friction for different surfaces and speeds.

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Front-to-Back Ratio Antenna Calculator

Calculate F/B ratio for directional antennas and assess performance.

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Frozen Water Expansion Calculator

Calculate how much water expands when freezing into ice.

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Fugacity Coefficient Calculator

Calculate fugacity coefficient (φ) for real gas behavior analysis.

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Fresnel Distance Calculator

Calculate Fresnel zone radius for wireless signal clearance planning.

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Geothermal Heat Calculator

Calculate geothermal heat flux, thermal power, and temperature gradients for geothermal energy systems.

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Geothermal Heat Pump Size Calculator

Calculate geothermal heat pump size and capacity for residential and commercial ground source heating and cooling systems.

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Gravity to Mass Calculator

Convert gravitational force to mass using physics formulas with planetary gravity support.

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Ground Temperature Calculator

Calculate ground temperature at different depths and seasons for construction, agriculture, and geothermal systems.

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Gyromagnetic Ratio Calculator

Calculate gyromagnetic ratio (γ) for particles, nuclei, and systems using magnetic moment, angular momentum, resonance frequency, and magnetic field.

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Gyroscope Angle Calculator

Calculate angular displacement and orientation angle from gyroscope data including angular velocity and time. Supports multi-axis calculations for physics, robotics, and motion analysis.

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Ham Radio Range Calculator

Calculate amateur radio communication range based on antenna heights, frequency bands, and terrain. Perfect for licensed operators and emergency communications.

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Heat Flux to Temperature Calculator

Calculate temperature difference and surface temperature from heat flux values using thermal conductivity and material thickness.

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Heat from Friction Calculator

Calculate heat energy and temperature rise generated from mechanical friction between surfaces.

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Heat of Condensation Calculator

Calculate heat energy released during condensation of vapor to liquid. Free thermodynamics calculator for phase change heat transfer.

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