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Physics

Physics Calculators

Use these physics calculators for kinematics, force, work, power, projectile motion, Ohm’s law, resistor color code, voltage divider, RC circuit timing, battery life, and decibel calculation. This page is useful for school physics, electronics, lab work, engineering basics, and quick formula checks.

Kinematics Force Projectile Motion Ohm's Law RC Circuit Battery Life dB

Kinematics Calculator

Calculate final velocity using the equation v = u + at.

Force Calculator

Calculate force from mass and acceleration using F = ma.

Work Calculator

Calculate work using W = Fd.

Power Calculator

Calculate power using P = W / t.

Projectile Motion Calculator

Estimate range, maximum height, and time of flight from launch speed and angle.

Ohm’s Law Calculator

Calculate voltage, current, or resistance using V = IR.

Resistor Color Code Calculator

Select 4-band resistor colors to get the resistance value.

Voltage Divider Calculator

Calculate output voltage from input voltage and two resistors.

RC Circuit Calculator

Calculate time constant using τ = RC.

Battery Life Calculator

Estimate battery runtime from battery capacity and device current draw.

dB Calculator

Calculate decibel gain or loss from two power values using dB = 10 log10(P2/P1).

What You Can Calculate

This physics calculator page covers core mechanics, electricity, and electronics formulas used in school and engineering basics. You can use the kinematics calculator, force calculator, work calculator, power calculator, projectile motion calculator, Ohm’s law calculator, resistor color code calculator, voltage divider calculator, RC circuit calculator, battery life calculator, and dB calculator from one place.

These calculators are useful for homework, electronics projects, lab preparation, exam revision, and quick formula checking. They are designed for fast estimation and should be compared with your class method or circuit conditions where needed.

How To Use These Physics Calculators

Enter the values shown in each tool and review both the numeric result and the formula relation. For circuit tools, keep units consistent and convert milliamp, microfarad, or kilo-ohm values into the expected base unit before calculation if needed.

For the projectile motion calculator, the result assumes ideal motion without air resistance. For battery life, the estimate assumes a steady current draw instead of variable load.

Related Calculator Archive

Helpful External Resources

For reference, see NIST constants, Khan Academy Physics, and Ohm’s law references.