Force Converter

Convert between newtons, pounds-force, dynes, and other force units

Common Force Conversions

Newton to Pound-force
1 N = 0.225 lbf
Pound-force to Newton
1 lbf = 4.45 N
Kilonewton to Pound-force
1 kN = 225 lbf
Kilogram-force to Newton
1 kgf = 9.81 N
Kip to Kilonewton
1 kip = 4.45 kN
Dyne to Newton
1 dyn = 10⁻⁵ N

Force in Real Life

Earth's Gravity

1 kg mass = 9.81 N force

Handshake

≈ 100-200 N grip force

Rocket Thrust

Saturn V ≈ 34 MN (7.6M lbf)

Car Braking

≈ 10-15 kN maximum force

About Force Measurement

Force is a vector quantity that causes an object to accelerate, decelerate, or change direction. It's measured in newtons (N) in the SI system, defined as the force required to accelerate 1 kilogram of mass at 1 meter per second squared (F = ma). Force calculations are fundamental in physics, engineering, and mechanical design.

Common Applications

  • • Structural engineering and load calculations
  • • Mechanical design and stress analysis
  • • Automotive braking and acceleration systems
  • • Aerospace propulsion and thrust calculations
  • • Material testing and strength analysis
  • • Sports biomechanics and performance

Types of Forces

  • Gravitational: attraction between masses
  • Normal: perpendicular contact force
  • Friction: resistance to motion
  • Tension: pulling force in strings/cables
  • Applied: external force on object
  • Spring: elastic restoring force

Newton's Laws

Newton's laws govern force interactions: 1st Law - objects at rest stay at rest unless acted upon by force; 2nd Law - F = ma (force equals mass times acceleration);3rd Law - for every action, there's an equal and opposite reaction. These principles form the foundation of classical mechanics.