Pounds-force per square foot to Kilopascals
1 pound-force per square foot = 0.04788 kilopascals · 1 kPa = 20.885 lbf/ft²
1 pound-force per square foot = 0.04788 kilopascals
How it’s calculated
kPa = lbf/ft² × 0.04788025898
- Multiply the value in pounds-force per square foot by 0.04788025898.
- To go back, divide by 0.04788025898 (or multiply by 20.88543423).
- 1 lbf/ft² = 0.04788025898 kPa · 1 kPa = 20.88543423 lbf/ft²
Show worked solutionFactor, unit cancellation and rounding, step by step
Find the conversion factor
By definition 1 lbf/ft² = 47.8802589803358 Pa and 1 kPa = 1000 Pa, so 1 kPa = 20.8854342331501 lbf/ft². Source: NIST SP 811 / Handbook 44; BIPM SI Brochure (9th ed.) (SI prefixes and accepted units).
Multiply by the factor written as a fraction
Put lbf/ft² in the denominator so it cancels, leaving kPa.
Calculate (unrounded)
Round the answer
Rounded to 5 significant figures.
Answer: 0.04788 kPa
1 lbf/ft² in other units
Batch convert lbf/ft² → kPa
- 1 lbf/ft² = 0.04788 kPa
- 5 lbf/ft² = 0.2394 kPa
- 10 lbf/ft² = 0.4788 kPa
- 25 lbf/ft² = 1.197 kPa
Quick examples
- 1 pound-force per square foot = 0.04788 kilopascals
- 5 pounds-force per square foot = 0.2394 kilopascals
- 10 pounds-force per square foot = 0.4788 kilopascals
- 25 pounds-force per square foot = 1.197 kilopascals
- 100 pounds-force per square foot = 4.788 kilopascals
About these units
Pound-force per square foot (lbf/ft²)
US & imperial (identical)
≈ 47.880 26 Pa. Used for wind, snow and floor loads.
1 lbf/ft² = 47.88025898 Pa
Source: NIST SP 811 / Handbook 44
Kilopascal (kPa)
SI (metric)
1 kPa = 1000 Pa
Source: BIPM SI Brochure (9th ed.) (SI prefixes and accepted units)
Pounds-force per square foot to kilopascals conversion table
| Pounds-force per square foot (lbf/ft²) | Kilopascals (kPa) |
|---|---|
| 1 lbf/ft² | 0.04788 kPa |
| 5 lbf/ft² | 0.2394 kPa |
| 10 lbf/ft² | 0.4788 kPa |
| 20 lbf/ft² | 0.95761 kPa |
| 25 lbf/ft² | 1.197 kPa |
| 30 lbf/ft² | 1.4364 kPa |
| 36 lbf/ft² | 1.7237 kPa |
| 40 lbf/ft² | 1.9152 kPa |
| 50 lbf/ft² | 2.394 kPa |
| 60 lbf/ft² | 2.8728 kPa |
| 75 lbf/ft² | 3.591 kPa |
| 100 lbf/ft² | 4.788 kPa |
| 150 lbf/ft² | 7.182 kPa |
| 200 lbf/ft² | 9.5761 kPa |
| 250 lbf/ft² | 11.97 kPa |
| 300 lbf/ft² | 14.364 kPa |
| 355 lbf/ft² | 16.997 kPa |
| 400 lbf/ft² | 19.152 kPa |
| 500 lbf/ft² | 23.94 kPa |
| 1,000 lbf/ft² | 47.88 kPa |
Related conversions
Frequently asked questions
How do I convert pounds-force per square foot to kilopascals?
Use kPa = lbf/ft² × 0.04788025898. Multiply the value in pounds-force per square foot by 0.04788025898.
How many kilopascals are in 1 pound-force per square foot?
1 pound-force per square foot (lbf/ft²) equals 0.04788 kilopascals (kPa); more precisely 0.04788025898.
How many pounds-force per square foot are in 1 kilopascal?
1 kilopascal (kPa) equals 20.885 pounds-force per square foot (lbf/ft²); more precisely 20.88543423.
What is 10 lbf/ft² in kPa?
10 pounds-force per square foot = 0.4788 kilopascals.
What is a pound-force per square foot?
≈ 47.880 26 Pa. Used for wind, snow and floor loads.
Formula: kPa = lbf/ft² × 0.04788025898. Factors last reviewed 2026-10-27.