Newton to Joules Calculator

No. A newton measures force and a joule measures energy; they are different physical quantities. You cannot say "1 N = X J" without a distance. Energy only appears when a force acts over a distance: E = F x d. So 100 N is 200 J only if it pushes something over 2 meters.

Work (energy) = force x distance, or E = F x d. Use newtons for force and meters for distance and the answer comes out directly in joules, because 1 joule is defined as exactly 1 newton-meter. If the force is given in kilonewtons or pound-force, or the distance in cm, km, or feet, convert to N and m first, then multiply.

It depends on the distance. 100 N acting over 2 m gives E = 100 x 2 = 200 J. Over 0.5 m it gives 50 J. Over 1 km it gives 100,000 J. Any "newton to joule" answer that does not mention a distance is incomplete.

Rearrange the formula: F = E / d. For example, 200 J of energy delivered over 2 m means an average force of 200 / 2 = 100 N. Select the "Energy + distance to force" mode above and the calculator does this for you.

Use d = E / F. For example, 500 J produced by a steady 25 N force covers 500 / 25 = 20 m. Select the "Energy + force to distance" mode above.

1 pound-force foot equals 1.35582 J. This follows from exact definitions: 1 lbf = 4.4482216152605 N and 1 ft = 0.3048 m, so 1 lbf-ft = 4.4482216152605 x 0.3048 = 1.3558179483 J.

Yes. The full physics formula is W = F x d x cos(theta), where theta is the angle between the force and the direction of motion. This calculator assumes the force pushes straight along the motion (theta = 0, cos = 1), which is the common case for pushing, pulling, and lifting. A force at right angles to the motion (theta = 90) does zero work.

Lifting works against gravity. The force is weight = mass x g = 10 x 9.80665 = 98.0665 N. Energy = 98.0665 N x 2 m = 196.133 J. (To convert mass to force first, see the kg-to-newtons calculator.)

kg-to-newtons converts mass to force (kilograms to newtons, using gravity). This tool converts force-plus-distance to energy (newtons and meters to joules). Use kg-to-newtons when you have a mass; use this calculator when you have a force acting over a distance.

joules-to-kj converts between energy units (joules to kilojoules and other energy units). This tool computes energy from force and distance (newtons to joules). Once you have your answer in joules here, joules-to-kj can express it in kJ, calories, or watt-hours.

Force: newton (N), kilonewton (kN), pound-force (lbf). Distance: meter (m), centimeter (cm), kilometer (km), foot (ft). Energy: joule (J), kilojoule (kJ), watt-hour (Wh), British thermal unit (BTU, International Table).

Yes, exactly. The joule is defined as the work done when a force of one newton moves something one meter: 1 J = 1 N-m, by definition of the SI system. The unit "newton-meter" is also used for torque, which is a different quantity with the same dimensions.