Joule per Second to Foot-pound per Minute Converter
Convert J/s to ft⋅lb/min with our free online power converter.
Quick Answer
1 Joule per Second = 44.253729 ft⋅lb/min
Formula: Joule per Second × conversion factor = Foot-pound per Minute
Use the calculator below for instant, accurate conversions.
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All conversion formulas on UnitsConverter.io have been verified against NIST (National Institute of Standards and Technology) guidelines and international SI standards. Our calculations are accurate to 10 decimal places for standard conversions and use arbitrary precision arithmetic for astronomical units.
Joule per Second to Foot-pound per Minute Calculator
How to Use the Joule per Second to Foot-pound per Minute Calculator:
- Enter the value you want to convert in the 'From' field (Joule per Second).
- The converted value in Foot-pound per Minute will appear automatically in the 'To' field.
- Use the dropdown menus to select different units within the Power category.
- Click the swap button (⇌) to reverse the conversion direction.
How to Convert Joule per Second to Foot-pound per Minute: Step-by-Step Guide
Converting Joule per Second to Foot-pound per Minute involves multiplying the value by a specific conversion factor, as shown in the formula below.
Formula:
ft⋅lb/min = J/s × 44.2537Example Calculation:
1 J/s = 44.253729 ft⋅lb/min
Disclaimer: For Reference Only
These conversion results are provided for informational purposes only. While we strive for accuracy, we make no guarantees regarding the precision of these results, especially for conversions involving extremely large or small numbers which may be subject to the inherent limitations of standard computer floating-point arithmetic.
Not for professional use. Results should be verified before use in any critical application. View our Terms of Service for more information.
Need to convert to other power units?
View all Power conversions →What is a Joule per Second and a Foot-pound per Minute?
1 J/s = 1 W (exactly, by definition)
SI Definition of Watt: 1 W = 1 J/s = 1 kg⋅m²/s³
1 ft⋅lbf/min = 0.0226 W = 0.0000226 kW = 0.00003 hp = 0.0771 BTU/h
Horsepower relationship: 33,000 ft⋅lbf/min = 1 hp (745.7 W) exactly
Note: The Joule per Second is part of the imperial/US customary system, primarily used in the US, UK, and Canada for everyday measurements. The Foot-pound per Minute belongs to the imperial/US customary system.
Common Uses and Applications: J/s vs ft⋅lb/min
Explore the typical applications for both Joule per Second (imperial/US) and Foot-pound per Minute (imperial/US) to understand their common contexts.
Common Uses for J/s
Physics: Fundamental power unit, teaching energy/power relationship. Engineering: Power calculations, energy transfer rates. Scientific: Research papers, technical specifications. Interchangeable: J/s and W used synonymously.
When to Use ft⋅lb/min
Historical: Original horsepower definition (Watt, 1780s). Engineering Education: Teaching power unit derivations. Rarely Used: Impractically small for modern applications. Conversion Reference: Link between hp and ft⋅lbf/s.
Additional Unit Information
About Joule per Second (J/s)
Why is 1 J/s = 1 W exactly?
SI Definition: The watt is defined as one joule per second
Dimensional analysis:
- Energy: joules (J)
- Time: seconds (s)
- Power: energy/time = J/s
Therefore: 1 W ≡ 1 J/s (definitional equality)
Example: 100W device uses 100 J every second
- 1 second: 100 J used
- 10 seconds: 1,000 J used
- 1 hour (3,600s): 360,000 J = 360 kJ = 0.1 kWh
How do I calculate power from energy and time?
Formula: Power (W or J/s) = Energy (J) ÷ Time (s)
Examples:
Charging phone:
- Battery capacity: 15 Wh = 54,000 J
- Charging time: 2 hours = 7,200 s
- Charging power: 54,000 ÷ 7,200 = 7.5 J/s = 7.5 W
Lifting weight:
- Work done: 500 J (lifting 50 kg by 1 meter)
- Time taken: 2 seconds
- Power output: 500 ÷ 2 = 250 J/s = 250 W
Boiling water:
- Energy needed: 420,000 J (1 liter, 25°C to 100°C)
- Time: 6 minutes = 360 s
- Power: 420,000 ÷ 360 = 1,167 J/s = 1,167 W = 1.17 kW
What is the difference between J/s and J?
J (Joule) = Energy (total amount) J/s (Joule per second) = Power (rate of energy transfer)
Analogy:
- J = distance traveled (miles)
- J/s = speed (miles per hour)
Example:
- Energy stored: 10,000 J (battery capacity)
- Power delivered: 100 J/s (discharge rate)
- Time to empty: 10,000 ÷ 100 = 100 seconds
Another example:
- Microwave energy delivered: 600,000 J (to heat food)
- Microwave power: 1,000 J/s
- Cooking time: 600,000 ÷ 1,000 = 600 s = 10 minutes
How do I convert between J/s and other power units?
J/s to watts: 1:1 (they're the same)
J/s to other units:
- kW = J/s ÷ 1,000
- hp = J/s ÷ 745.7
- BTU/h = J/s × 3.412
Examples:
- 1,000 J/s = 1,000 W = 1 kW
- 745.7 J/s = 745.7 W = 1 hp
- 100 J/s = 100 W = 341.2 BTU/h
J/s to kW converter → J/s to HP converter →
Why use W instead of J/s if they're identical?
Brevity: "100 watts" vs "100 joules per second" Convention: Industry standard since 1960 Honor: Named after James Watt (inventor, engineer) Clarity: Distinguishes power from energy (avoids "joules per hour" confusion)
In practice: Both acceptable, but "watt" strongly preferred in all applications. Scientific papers use both interchangeably.
About Foot-pound per Minute (ft⋅lb/min)
How do I convert ft⋅lbf/min to horsepower?
Formula: hp = ft⋅lbf/min ÷ 33,000
Examples:
- 33,000 ft⋅lbf/min = 1 hp (exact)
- 16,500 ft⋅lbf/min = 0.5 hp
- 66,000 ft⋅lbf/min = 2 hp
- 330,000 ft⋅lbf/min = 10 hp
How do I convert ft⋅lbf/min to ft⋅lbf/s?
Formula: ft⋅lbf/s = ft⋅lbf/min ÷ 60
Examples:
- 60 ft⋅lbf/min = 1 ft⋅lbf/s
- 600 ft⋅lbf/min = 10 ft⋅lbf/s
- 33,000 ft⋅lbf/min = 550 ft⋅lbf/s = 1 hp
ft⋅lbf/min to ft⋅lbf/s converter →
Why 33,000 ft⋅lbf/min for 1 hp?
James Watt's experiment (1780s):
Observation: Draft horses in coal mines
- Work rate: Lifting ~22,000 lb⋅ft/min (typical horse)
- Watt's definition: 33,000 ft⋅lbf/min (50% above average)
- Marketing: Sell steam engines rated conservatively vs horses
Calculation:
- 33,000 ft⋅lbf/min ÷ 60 = 550 ft⋅lbf/s
- 550 ft⋅lbf/s × 1.356 = 745.7 W (modern equivalent)
Persists: Still defines horsepower 240+ years later!
How do I calculate power in ft⋅lbf/min?
Formula: Power (ft⋅lbf/min) = Force (lbf) × Distance per minute (ft/min)
Examples:
- Lifting 100 lb at 10 ft/min: 1,000 ft⋅lbf/min = 0.03 hp = 22.6 W
- Winch pulling 500 lb at 20 ft/min: 10,000 ft⋅lbf/min = 0.3 hp = 226 W
- Elevator lifting 2,000 lb at 100 ft/min: 200,000 ft⋅lbf/min = 6.06 hp = 4.52 kW
Modern practice: Convert to hp or kW for practical use.
Conversion Table: Joule per Second to Foot-pound per Minute
| Joule per Second (J/s) | Foot-pound per Minute (ft⋅lb/min) |
|---|---|
| 0.5 | 22.127 |
| 1 | 44.254 |
| 1.5 | 66.381 |
| 2 | 88.508 |
| 5 | 221.269 |
| 10 | 442.537 |
| 25 | 1,106.343 |
| 50 | 2,212.686 |
| 100 | 4,425.373 |
| 250 | 11,063.432 |
| 500 | 22,126.865 |
| 1,000 | 44,253.729 |
People Also Ask
How do I convert Joule per Second to Foot-pound per Minute?
To convert Joule per Second to Foot-pound per Minute, enter the value in Joule per Second in the calculator above. The conversion will happen automatically. Use our free online converter for instant and accurate results. You can also visit our power converter page to convert between other units in this category.
Learn more →What is the conversion factor from Joule per Second to Foot-pound per Minute?
The conversion factor depends on the specific relationship between Joule per Second and Foot-pound per Minute. You can find the exact conversion formula and factor on this page. Our calculator handles all calculations automatically. See the conversion table above for common values.
Can I convert Foot-pound per Minute back to Joule per Second?
Yes! You can easily convert Foot-pound per Minute back to Joule per Second by using the swap button (⇌) in the calculator above, or by visiting our Foot-pound per Minute to Joule per Second converter page. You can also explore other power conversions on our category page.
Learn more →What are common uses for Joule per Second and Foot-pound per Minute?
Joule per Second and Foot-pound per Minute are both standard units used in power measurements. They are commonly used in various applications including engineering, construction, cooking, and scientific research. Browse our power converter for more conversion options.
For more power conversion questions, visit our FAQ page or explore our conversion guides.
Helpful Conversion Guides
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📚 How to Convert Units
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⚖️ Metric vs Imperial
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⚠️ Common Mistakes
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All Power Conversions
Other Power Units and Conversions
Explore other power units and their conversion options:
- Watt (W) • Joule per Second to Watt
- Milliwatt (mW) • Joule per Second to Milliwatt
- Kilowatt (kW) • Joule per Second to Kilowatt
- Megawatt (MW) • Joule per Second to Megawatt
- Gigawatt (GW) • Joule per Second to Gigawatt
- Horsepower (hp) • Joule per Second to Horsepower
- Metric Horsepower (PS) • Joule per Second to Metric Horsepower
- Electric Horsepower (hp(E)) • Joule per Second to Electric Horsepower
- BTU per Hour (BTU/h) • Joule per Second to BTU per Hour
- BTU per Minute (BTU/min) • Joule per Second to BTU per Minute
Verified Against Authority Standards
All conversion formulas have been verified against international standards and authoritative sources to ensure maximum accuracy and reliability.
National Institute of Standards and Technology — Fundamental physical constants and unit conversions
Bureau International des Poids et Mesures — International System of Units (SI) definitions and standards
International Organization for Standardization — Quantities and units international standards series
Last verified: December 3, 2025