What is 1 Pound per square inch in Kilopound per square inch?

1 Pound per square inch = 0.001 Kilopound per square inch (psi → ksi).

What is the formula to convert Pound per square inch to Kilopound per square inch?

ksi = psi × 0.001 Example: 1 psi = 0.001 ksi.

No — the factor is approximate to engineering precision. The page surfaces an "Approx" badge whenever the relationship is not defined exactly.

Convert pound per square inch to kilopound per square inch instantly. The conversion factor is approximate to engineering precision.

Realtime·pressure·imperial

Approx

From

psi

× 0.001

Result

ksi

0.001

Precision [auto]

ksi = psi × 0.001

Inverse: psi = ksi × 1000

Worked example: 1 psi = 0.001 ksi

Pound per square inch (psi)

US tire pressure, plumbing, industry.

Kilopound per square inch (ksi)

Pound per square inch (psi)	Kilopound per square inch (ksi)
1	0.001
2	0.002
5	0.005
10	0.01
15	0.015
20	0.02
25	0.025
50	0.05
100	0.1
250	0.25
500	0.5
750	0.75
1,000	1

Want a downloadable CSV? Append ?format=csv to the API /api/v1/table endpoint.

GET https://convertnavi.com/api/v1/convert?value=10&from=psi&to=ksi

Embed this converter

<div data-convertnavi="psi->ksi"></div>
<script async src="https://convertnavi.com/embed.js"></script>