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lb·ft/s to lbf·s Converter

Convert pound foot per second (lb·ft/s) to pound-force second (lbf·s). Enter a value for an instant result, or use the examples and reverse conversion below.

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MOTION

Momentum & impulse

Linear momentum and equivalent mechanical impulse.

lb·ft/s
lbf·s

Try a decimal, 1e-9, 1/3, or 5 1/2.

Result0.031081 lbf·s1 lb·ft/s = 0.031081 lbf·s
HOW IT IS CALCULATED

Convert through kilogram metre per second

Enter a pound foot per second value to calculate pound-force second with full internal precision before display rounding.

Display PrecisionAuto · 6 significant digits

Auto trims unnecessary zeroes and uses scientific notation for extreme magnitudes. Use Digits to set the display precision; calculations retain full precision.

QUICK REFERENCE

All units in this quantity

UnitSymbolConverted value
kilogram metre per secondfrom lb·ft/skg·m/s0.138255
newton secondfrom lb·ft/sN·s0.138255
gram centimetre per secondfrom lb·ft/sg·cm/s13825.5
pound foot per secondfrom lb·ft/slb·ft/s1
pound-force secondfrom lb·ft/slbf·s0.031081
slug foot per secondfrom lb·ft/sslug·ft/s0.031081

SI symbols follow international notation. U.S. and Imperial measures are labelled separately where their values differ.

lb·ft/s to lbf·s Conversion Reference

Pound Foot Per Second (lb·ft/s) and pound-force second (lbf·s) are units of momentum & impulse. Use this page to convert in either direction.

Conversion Examples

Pound Foot Per Second to Pound-force Second
Pound Foot Per Second (lb·ft/s)Pound-force Second (lbf·s)
1 lb·ft/s0.031081 lbf·s
5 lb·ft/s0.155405 lbf·s
10 lb·ft/s0.31081 lbf·s
100 lb·ft/s3.1081 lbf·s

Examples are rounded to 6 significant digits. The interactive converter retains full calculation precision; change Display Precision to see more digits.

Reverse Conversion

lbf·s to lb·ft/s (pound-force second to pound foot per second)

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