Newton metre is the unit of moment (torque) in the SI system. The symbolic form is N m or N·m,[1] and sometimes hyphenated newton-metre. It is a compound unit of torque corresponding to the torque from a force of one newton applied over a distance arm of one metre. The definition, agreement and practical use of units of measurement have played a crucial role in human endeavour from early ages up to this day. ... It has been suggested that this article or section be merged with torque. ... For other senses of this word, see torque (disambiguation). ... Look up si, Si, SI in Wiktionary, the free dictionary. ... For other senses of this word, see torque (disambiguation). ... For other uses, see Force (disambiguation). ... For other uses, see Newton (disambiguation). ... This article is about the unit of length. ...

While a newton metre is dimensionally equivalent to a joule, the SI unit of energy and work, in a newton metre, the force and the distance arm are normal to each other, while in the joule, force and distance are co-linear. Another fundamental difference between the two is the fact that work is a scalar quantity, expressed as dU=F•dr, whereas the moment of a force or torque is defined as a cross product and as such is a vector quantity. The joule (IPA: or ) (symbol: J) is the SI unit of energy. ... Look up si, Si, SI in Wiktionary, the free dictionary. ... ... In linear algebra, real numbers are called scalars and relate to vectors in a vector space through the operation of scalar multiplication, in which a vector can be multiplied by a number to produce another vector. ... For the cross product in algebraic topology, see Künneth theorem. ...

Conversion factors

• 1 joule = 1 N·m
• 1 newton metre = 0.7375621 foot-pound force (often "foot-pound")
• 1 metre kilogram-force = 9.80665 N·m
• 1 centimetre kilogram-force = 98.0665 mN·m
• 1 foot-pound force (often "foot-pounds") = 1 pound-force foot (often "pound-feet") = 1.3558179 N·m
• 1 inch ounce-force = 7.0615518 mN·m
• 1 dyne centimetre = 10⁻⁷ N·m

This article is about the unit of length. ... The foot-pound force (symbol: ft·lbf) is an English unit of work or energy from the English Engineering System. ... This article is about the unit of length. ... The unit kilogram-force (kgf, often just kg) or kilopond (kp) is defined as the force exerted by one kilogram of mass in standard Earth gravity. ... A centimetre (American spelling centimeter, symbol cm) is a unit of length that is equal to one hundredth of a metre, the current SI base unit of length. ... The foot-pound force (symbol: ft·lbf) is an English unit of work or energy from the English Engineering System. ... The pound-force is a non-SI unit of force or weight (properly abbreviated lbf or lbf). The pound-force is equal to a mass of one pound multiplied by the standard acceleration due to gravity on Earth (which is defined as exactly 9. ... An inch (plural: inches; symbol or abbreviation: in or, sometimes, ″ - a double prime) is the name of a unit of length in a number of different systems, including English units, Imperial units, and United States customary units. ... In physics, the dyne is a unit of force specified in the centimetre-gram-second (cgs) system of units, symbol dyn. One dyne is equal to exactly 10-5 newtons. ... A centimetre (American spelling centimeter, symbol cm) is a unit of length that is equal to one hundredth of a metre, the current SI base unit of length. ...

See also

• Foot-pound force
• Spring scale
• Torque