Rontojoule is 1e-27 joule units.
Rontojoules to Foot-pounds Converter — rJ to ft-lb
Convert Rontojoule (rJ) to Foot-pound (ft-lb) using the exact conversion factor (1 rontojoule = 7.375621e-28 foot-pound). See the formula, worked examples, and conversion table.
Rontojoules to Foot-pounds converter
Converter
Energy Converter
Convert joules, calories, kilowatt-hours, BTU, electronvolts, therms, and mechanical work units.
Context values
Some unit families need one extra value for a physically accurate result.
Work from one pound-force over one foot.
Result = input x 1e-27 / 1.355817948.
Energy uses the joule as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Rontojoules to Foot-pounds
Rontojoule and Foot-pound both measure energy, and the conversion is especially useful for comparing nutrition labels (kilocalories) against scientific energy figures (joules). Specifically: Rontojoule is 1e-27 joule units, and work from one pound-force over one foot.
Formula
foot-pounds = rontojoules × 7.375621e-28
This factor comes from each unit's defined relationship to the category's base unit: 1 rontojoule equals 1e-27 base units, and 1 foot-pound equals 1.35581794833 base units, so dividing one by the other gives the direct rontojoule-to-foot-pound factor of 7.375621e-28.
Simple example
1 rJ × 7.375621e-28 = 7.375621e-28 ft-lb
1 rontojoule = 7.375621e-28 foot-pounds.
Real-world example
100 rJ × 7.375621e-28 = 7.375621e-26 ft-lb
100 rontojoules = 7.375621e-26 foot-pounds.
Conversion table
| Rontojoule (rJ) | Foot-pound (ft-lb) |
|---|---|
| 1 rJ | 7.375621e-28 ft-lb |
| 10 rJ | 7.375621e-27 ft-lb |
| 100 rJ | 7.375621e-26 ft-lb |
| 500 rJ | 3.687811e-25 ft-lb |
| 1,000 rJ | 7.375621e-25 ft-lb |
| 2,000 rJ | 1.475124e-24 ft-lb |
Reverse conversion: Foot-pound to Rontojoule
7.375621e-28 ft-lb × 1.355818e+27 = 0.9999999332 rJ
7.375621e-28 foot-pounds = 0.9999999332 rontojoules.
rontojoules = foot-pounds × 1.355818e+27
For a page dedicated to this direction, see Foot-pound to Rontojoule.
Understanding the Rontojoule (rJ)
Rontojoule is 1e-27 joule units.
Understanding the Foot-pound (ft-lb)
Work from one pound-force over one foot.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many foot-pounds are in 1 rontojoule?
1 rontojoule equals 7.375621e-28 foot-pounds, using the exact defined conversion factor rather than an estimate.
How do I convert rontojoule to foot-pound?
Multiply the rontojoule value by 7.375621e-28. The converter above does this instantly to whatever precision you set.
How do I convert foot-pound back to rontojoule?
Use the reverse factor: 1 foot-pound equals 1.355818e+27 rontojoules. You can also use the swap control in the converter above to flip the direction instantly.
What is a rontojoule?
Rontojoule (rJ) is a unit of energy.
What is a foot-pound?
Foot-pound (ft-lb) is a unit of energy.
Is the rontojoule to foot-pound conversion exact?
Yes. Both rontojoule and foot-pound are defined by fixed standards rather than physical artifacts, so the factor of 7.375621e-28 used above is exact to as many digits as you choose to display.