Physics Unit Converter

Convert between different physical units

Quick answer

Physics Unit Converter

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

Formula

Converted Value = Input Value × Conversion Factor

⚗️ 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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