Overview
Foot-pounds (ft lbs) and inch-pounds (in lbs) are two units of measurement for torque, a measure of rotational force. While ft lbs are commonly used in larger applications, such as automotive and industrial settings, in lbs are more suitable for smaller applications, such as household tools and appliances. This conversion guide provides a comprehensive understanding of the relationship between ft lbs and in lbs, enabling accurate measurements and conversions for various applications.

Conversion Formula
The conversion factor between ft lbs and in lbs is 12. Therefore, to convert ft lbs to in lbs, you multiply the ft lbs value by 12. Conversely, to convert in lbs to ft lbs, you divide the in lbs value by 12.
Conversion Formula:
1 ft lb = 12 in lbs
1 in lb = 1/12 ft lb
Table of Conversion Values
The following table provides a comprehensive list of conversion values for ft lbs to in lbs:
Ft Lbs | In Lbs |
---|---|
1 | 12 |
2 | 24 |
3 | 36 |
4 | 48 |
5 | 60 |
6 | 72 |
7 | 84 |
8 | 96 |
9 | 108 |
10 | 120 |
Examples
Example 1: Convert 5 ft lbs to in lbs.
5 ft lbs x 12 = 60 in lbs
Example 2: Convert 30 in lbs to ft lbs.
30 in lbs รท 12 = 2.5 ft lbs
Applications
Ft lbs and in lbs are used in a wide range of applications, including:
- Automotive: Measuring torque on bolts, nuts, and other fasteners.
- Industrial: Calibrating torque wrenches, setting torque limits on machinery.
- Household: Tightening bolts on furniture, assembling appliances.
- Sports: Setting torque on bicycle pedals, tuning guitars.
Benefits of Accurate Torque Measurement
Accurate torque measurement is crucial for ensuring:
- Safety: Prevents over-tightening and under-tightening of fasteners, reducing the risk of equipment failure and injuries.
- Performance: Optimizes the performance of machinery, tools, and appliances by ensuring proper torque levels.
- Durability: Extends the lifespan of equipment and components by preventing excessive strain and wear.
Tips and Tricks
- Use a torque wrench to measure and apply torque accurately.
- Calibrate torque wrenches regularly to ensure precision.
- Always consult manufacturer’s specifications for recommended torque values.
- Avoid using impact wrenches for precision torque applications.
- If you don’t have a torque wrench, use a ‘torque stick’ which is a calibrated bar that flexes at a specific torque.
Step-by-Step Conversion Guide
- Identify the value: Determine the torque value in ft lbs or in lbs.
- Choose the conversion formula: Multiply by 12 to convert ft lbs to in lbs, or divide by 12 to convert in lbs to ft lbs.
- Perform the calculation: Use the conversion formula to obtain the converted torque value.
- Check your answer: Ensure the converted value is within an acceptable range for the application.
Conclusion
Understanding the relationship between ft lbs and in lbs is essential for accurate torque measurement and application. By following the conversion formula, referencing the provided table, and considering the various applications and benefits, individuals can effectively convert between these units and ensure optimal performance in a multitude of settings.