Physics Unit Converter

Convert between different physical units

⚗️ Unit Conversion

🔬 Conversion Result

Quick Reference - Length

1 meter= 3.28 feet
1 kilometer= 0.62 miles
1 inch= 2.54 cm

⚗️Formula

Converted Value = Input Value × Conversion Factor

💡How it works

Unit conversion is fundamental in physics. Convert between different units of length, mass, and temperature using standard conversion factors.

ℹ️ What is Physics Calculator?

A physics calculator solves equations across core physics domains — kinematics (motion), dynamics (forces), energy and work, electromagnetism, and thermodynamics. It helps students, engineers, and scientists quickly compute physical quantities from known variables.

📐 Formula

Kinematics: v² = u² + 2as | Energy: KE = ½mv² | Force: F = ma
F— Force in Newtons (N = kg·m/s²)
m— Mass in kilograms
a— Acceleration in m/s²
v, u— Final and initial velocity in m/s
s— Displacement in meters

✏️ Worked Example

Initial velocity: 0 m/s (starts from rest)
Acceleration: 9.8 m/s² (gravity)
Time: 3 seconds
  1. 1Final velocity: v = u + at = 0 + 9.8 × 3 = 29.4 m/s
  2. 2Displacement: s = ut + ½at² = 0 + ½ × 9.8 × 9 = 44.1 m
  3. 3Kinetic energy: KE = ½mv² (need mass) — e.g., 5 kg: ½ × 5 × 29.4² = 2160 J
✅ Result: v = 29.4 m/s | s = 44.1 m | KE (5 kg) = 2,160 J

💡 How to Interpret Results

  • ▸g = 9.8 m/s² ≈ 9.81 m/s² near Earth's surface (use 10 for rough estimates).
  • ▸Positive acceleration in the same direction as motion means speeding up; opposite means slowing down.
  • ▸Energy is conserved — KE + PE = constant (ignoring friction).
  • ▸Weight (force due to gravity) = m × g; mass is intrinsic, weight depends on gravitational field.
  • ▸SI units are critical — always convert to meters, kilograms, and seconds before calculating.

❓ Frequently Asked Questions

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