Convert British Thermal Units to foot-pounds and vice versa with Examples.com. Just input your data and precise conversion results.
BTU to ft-lb
Formula: Energy in Foot-pounds (ft-lb) = Energy in British Thermal Units (BTU) x 778.169
British Thermal Unit :
Foot-pound :
| British Thermal Units | Foot-pounds |
|---|---|
| 1 | 778.169 |
ft-lb to BTU
Formula: Energy in British Thermal Units (BTU) = Energy in Foot-pounds (ft-lb) ÷ 778.169
Foot-pound :
British Thermal Unit :
| Foot-pounds | British Thermal Units |
|---|---|
| 1 | 0.0012850678965623148 |
Conversion Factors:
- British Thermal Units to Foot-pounds: 1 BTU = 778.169 ft-lb
- Foot-pounds to British Thermal Units: 1 ft-lb = 1/778.169 BTU
How to Convert British Thermal Units to Foot-pounds:
To convert British Thermal Units to foot-pounds, multiply the number of BTUs by 778.169.
Foot-pounds=BTU×778.169
Example: Convert 200 BTUs to foot-pounds.
Foot-pounds=200×778.169=155,633.8 ft-lb
How to Convert Foot-pounds to British Thermal Units:
To convert foot-pounds to British Thermal Units, divide the number of foot-pounds by 778.169.
BTU=Foot-pounds/778.169
Example: Convert 500,000 foot-pounds to BTUs.
BTU=500,000/778.169=642.32 BTU
British Thermal Unit to Foot-pound Conversion Table
| BTU | Foot-pound (ft-lb) |
|---|---|
| 1 BTU | 778.169 ft-lb |
| 2 BTU | 1,556.34 ft-lb |
| 3 BTU | 2,334.51 ft-lb |
| 4 BTU | 3,112.68 ft-lb |
| 5 BTU | 3,890.85 ft-lb |
| 6 BTU | 4,669.01 ft-lb |
| 7 BTU | 5,447.18 ft-lb |
| 8 BTU | 6,225.35 ft-lb |
| 9 BTU | 7,003.52 ft-lb |
| 10 BTU | 7,781.69 ft-lb |
| 20 BTU | 15,563.38 ft-lb |
| 30 BTU | 23,345.07 ft-lb |
| 40 BTU | 31,126.76 ft-lb |
| 50 BTU | 38,908.45 ft-lb |
| 60 BTU | 46,690.14 ft-lb |
| 70 BTU | 54,471.83 ft-lb |
| 80 BTU | 62,253.52 ft-lb |
| 90 BTU | 70,035.21 ft-lb |
| 100 BTU | 77,816.90 ft-lb |
btu to ft-lb Conversion Chart
Foot-pound to British Thermal Unit Conversion Table
| Foot-pound (ft-lb) | BTU |
|---|---|
| 1 ft-lb | 0.00129 BTU |
| 2 ft-lb | 0.00257 BTU |
| 3 ft-lb | 0.00386 BTU |
| 4 ft-lb | 0.00514 BTU |
| 5 ft-lb | 0.00643 BTU |
| 6 ft-lb | 0.00771 BTU |
| 7 ft-lb | 0.00900 BTU |
| 8 ft-lb | 0.01028 BTU |
| 9 ft-lb | 0.01157 BTU |
| 10 ft-lb | 0.01285 BTU |
| 20 ft-lb | 0.02570 BTU |
| 30 ft-lb | 0.03855 BTU |
| 40 ft-lb | 0.05140 BTU |
| 50 ft-lb | 0.06425 BTU |
| 60 ft-lb | 0.07710 BTU |
| 70 ft-lb | 0.08995 BTU |
| 80 ft-lb | 0.10280 BTU |
| 90 ft-lb | 0.11565 BTU |
| 100 ft-lb | 0.12850 BTU |
ft-lb to btu Conversion Chart
Difference Between British Thermal Unit to Foot-pound
| Aspect | British Thermal Unit (BTU) | Foot-pound (ft-lb) |
|---|---|---|
| Definition | A unit of heat; the amount of heat required to raise the temperature of one pound of water by one degree Fahrenheit. | A unit of energy or work; the amount of energy required to move a one-pound object a distance of one foot. |
| Usage | Commonly used in heating, ventilation, air conditioning, and refrigeration (HVACR) industries. | Typically used in mechanical and engineering contexts. |
| Measurement Context | Measures thermal energy. | Measures mechanical energy. |
| Conversion Factor | 1 BTU = 778.169 ft-lb | 1 ft-lb = 0.00129 BTU |
| Common Applications | Used to rate the energy content of fuels, appliances like air conditioners, and heaters. | Used to calculate the energy exerted by engines, motors, and manual labor. |
| Practical Example | One BTU is roughly equal to the energy released by burning one match. | One foot-pound is the energy required to lift a one-pound weight one foot off the ground. |
| Historical Background | Developed in the early 19th century to quantify heating values of fuels. | Has origins in classical mechanics and the study of work and energy. |
| Symbol | BTU | ft-lb |
1. Solved Examples on Converting British Thermal Unit to Foot-pound
Example 1: Convert 1 BTU to foot-pounds
Foot-pound=1 BTU×778.169
Foot-pound=778.17ft-lb
Example 2: Convert 2 BTU to foot-pounds
Foot-pound=2 BTU×778.169
Foot-pound=1,556.34ft-lb
Example 3: Convert 5 BTU to foot-pounds
Foot-pound=5 BTU×778.169
Foot-pound=3,890.85ft-lb
Example 4: Convert 10 BTU to foot-pounds
Foot-pound=10 BTU×778.169
Foot-pound=7,781.69ft-lb
Example 5: Convert 20 BTU to foot-pounds
Foot-pound=20 BTU×778.169
Foot-pound=15,563.38ft-lb
2. Solved Examples on Converting Foot-pound to British Thermal Unit
Example 1: Convert 1 foot-pound to BTU
BTU=1 ft-lb/778.169
BTU=0.00129BTU
Example 2: Convert 10 foot-pounds to BTU
BTU=10 ft-lb/778.169
BTU=0.01285BTU
Example 3: Convert 50 foot-pounds to BTU
BTU=50 ft-lb/778.169
BTU=0.06425BTU
Example 4: Convert 100 foot-pounds to BTU
BTU=100 ft-lb/778.169
BTU=0.12850BTU
Example 5: Convert 500 foot-pounds to BTU
BTU=500 ft-lb/778.169
BTU=0.64232BTU
Are British Thermal Units and foot-pounds commonly used together?
While BTUs and foot-pounds both measure energy, they are used in different contexts. BTUs are typically used in heating, ventilation, and air conditioning (HVAC) systems, whereas foot-pounds are used in mechanical and engineering contexts.
Is there a simple way to remember the conversion factor?
A simple way to remember the conversion factor is to note that 1 BTU is approximately equal to 778.169 foot-pounds.
What tools can I use to convert British Thermal Units to foot-pounds?
You can use calculators, online conversion tools, or even spreadsheet software like Excel to perform these conversions quickly and accurately.
How do I ensure the accuracy of my conversion?
To ensure accuracy, use the precise conversion factor 778.169 and double-check your calculations, especially when converting large or critical values.
What are some practical applications of this conversion?
This conversion is useful in fields such as HVAC (heating, ventilation, and air conditioning), thermodynamics, and energy management where both thermal and mechanical energy measurements are important.