Torque from one pound-force at one foot.
Pound-feet to Decinewton meters Converter — lb ft to dN m
Convert Pound-foot (lb ft) to Decinewton meter (dN m) using the exact conversion factor (1 pound-foot = 13.55817948 decinewton meter). See the formula, worked examples, conversion table, history, and common uses.
Pound-feet to Decinewton meters converter
Converter
Torque Converter
Convert newton meters, pound-feet, pound-inches, ounce-inches, and kilogram-force meters.
Context values
Some unit families need one extra value for a physically accurate result.
Decinewton meter is 0.1 newton meter units.
Result = input x 1.355817948 / 0.1.
Torque uses the newton meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Pound-feet to Decinewton meters
Pound-foot and Decinewton meter both measure torque, and the conversion is essential for anyone using a torque wrench specified in one unit against a bolt or engine spec given in the other. Pound-foot is most often used for us torque wrench specifications (bolt tightening).
Formula
decinewton meters = pound-feet × 13.5581794833
This factor comes from each unit's defined relationship to the category's base unit: 1 pound-foot equals 1.35581794833 base units, and 1 decinewton meter equals 0.1 base units, so dividing one by the other gives the direct pound-foot-to-decinewton meter factor of 13.5581794833.
Simple example
1 lb ft × 13.55817948 = 13.55817948 dN m
1 pound-foot = 13.55817948 decinewton meters.
Real-world example
10 lb ft × 13.55817948 = 135.5817948 dN m
10 pound-feet = 135.5817948 decinewton meters.
Conversion table
| Pound-foot (lb ft) | Decinewton meter (dN m) |
|---|---|
| 1 lb ft | 13.55817948 dN m |
| 5 lb ft | 67.79089742 dN m |
| 10 lb ft | 135.5817948 dN m |
| 50 lb ft | 677.9089742 dN m |
| 100 lb ft | 1,355.817948 dN m |
| 500 lb ft | 6,779.089742 dN m |
Reverse conversion: Decinewton meter to Pound-foot
13.55817948 dN m × 0.07375621493 = 0.9999999998 lb ft
13.55817948 decinewton meters = 0.9999999998 pound-feet.
pound-feet = decinewton meters × 0.0737562149277
For a page dedicated to this direction, see Decinewton meter to Pound-foot.
Understanding the Pound-foot
Pound-foot (lb ft) measures torque. A pound-foot is the torque from one pound-force applied at one foot of leverage: exactly 1.3558179483314004 newton-meters. It is classified as a US/imperial customary unit.
Where it's used: United States (automotive and mechanical torque specifications)
Pound-foot vs. foot-pound. Pound-foot (torque) and foot-pound (energy/work) use the same two units but measure physically different quantities; US convention typically orders them differently to help distinguish which is meant, though usage isn't always consistent.
Uses of the Pound-foot today
- US torque wrench specifications (bolt tightening)
- US automotive engine torque specifications
- US mechanical and construction trades
History of the Pound-foot
The pound-foot follows from pound-force and the foot, both standardized through English and later international agreements, remaining the standard US automotive and mechanical torque unit even as most other measurements shifted toward metric in engineering contexts.
Historical origin. Pound-foot was not the invention of a single named person; it developed through the process described above.
Understanding the Decinewton meter (dN m)
Decinewton meter is 0.1 newton meter units.
Pound-foot — sources
- NIST Special Publication 811 — Documents the pound-foot's exact newton-meter equivalence.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many decinewton meters are in 1 pound-foot?
1 pound-foot equals 13.55817948 decinewton meters, using the exact defined conversion factor rather than an estimate.
How do I convert pound-foot to decinewton meter?
Multiply the pound-foot value by 13.55817948. The converter above does this instantly to whatever precision you set.
How do I convert decinewton meter back to pound-foot?
Use the reverse factor: 1 decinewton meter equals 0.0737562149 pound-feet. You can also use the swap control in the converter above to flip the direction instantly.
What is a pound-foot?
Pound-foot (lb ft) measures torque. A pound-foot is the torque from one pound-force applied at one foot of leverage: exactly 1.3558179483314004 newton-meters. It is classified as a US/imperial customary unit.
What is a decinewton meter?
Decinewton meter (dN m) is a unit of torque.
Is the pound-foot to decinewton meter conversion exact?
Yes. A pound-foot is the torque from one pound-force applied at one foot of leverage: exactly 1.3558179483314004 newton-meters. That fixed definition is what the converter above uses, so any rounding you see is a display choice, not a limitation of the math.
What is the difference between pound-foot vs. foot-pound?
Pound-foot (torque) and foot-pound (energy/work) use the same two units but measure physically different quantities; US convention typically orders them differently to help distinguish which is meant, though usage isn't always consistent.
Where is the pound-foot still used today?
United States (automotive and mechanical torque specifications)