Moment of Inertia Units Converter

Coversion factor: 1 kg·m² = 23.730360404 lb·ft²

Additional information

Moment of inertia, often denoted as (I), is a fundamental concept in physics and engineering that describes an object’s resistance to rotational motion around a specific axis. It quantifies how the mass of an object is distributed with respect to that axis. In simpler terms, moment of inertia measures how difficult it is to change an object’s rotational motion.

The standard unit for moment of inertia in the International System of Units (SI) is kilogram square meter (kg m²).

Moment of Inertia Conversion Factors

	kg·m²	kg·cm²	kg·mm²	g·cm²	g·mm²	kgf·m·s²	kgf·cm·s²	oz·in²	ozf·in·s²	lb·in²	lbf·in·s²	lb·ft²	lbf·ft·s²	slug·ft²
1 kg·m²	1	10000	1000000	10000000	1000000000	0.1019716213	10.19716213	54674.750371	141.61193315	3417.1718982	8.8507458217	23.730360404	0.7375621518	0.7375621461
1 kg·cm²	0.0001	1	100	1000	100000	0.0000101972	0.0010197162	5.4674750371	0.0141611933	0.3417171898	0.0008850746	0.002373036	0.0000737562	0.0000737562
1 kg·mm²	0.000001	0.01	1	10	1000	1.019716213e-7	0.0000101972	0.0546747504	0.0001416119	0.0034171719	0.0000088507	0.0000237304	7.375621518e-7	7.375621461e-7
1 g·cm²	1e-7	0.001	0.1	1	100	1.019716213e-8	0.0000010197	0.005467475	0.0000141612	0.0003417172	8.850745822e-7	0.000002373	7.375621518e-8	7.375621461e-8
1 g·mm²	1e-9	0.00001	0.001	0.01	1	1.019716213e-10	1.019716213e-8	0.0000546748	1.416119331e-7	0.0000034172	8.850745822e-9	2.37303604e-8	7.375621518e-10	7.375621461e-10
1 kgf·m·s²	9.80665	98066.5	9806650	98066500	9806650000	1	100	536176.14073	1388.7386642	33511.008796	86.796166512	232.71533886	7.233013876	7.2330138201
1 kgf·cm·s²	0.0980665	980.665	98066.5	980665	98066500	0.01	1	5361.7614073	13.887386642	335.11008796	0.8679616651	2.3271533886	0.0723301388	0.0723301382
1 oz·in²	0.00001829	0.1828997834	18.289978339	182.89978339	18289.978339	0.0000018651	0.0001865059	1	0.0025900792	0.0625	0.0001618799	0.0004340278	0.00001349	0.00001349
1 ozf·in·s²	0.0070615518	70.6155179	7061.55179	70615.5179	7061551.79	0.0007200779	0.0720077885	386.08858135	1	24.130536335	0.0625	0.167573169	0.0052083333	0.0052083333
1 lb·in²	0.0002926397	2.9263965343	292.63965343	2926.3965343	292639.65343	0.0000298409	0.002984094	16	0.041441267	1	0.0025900792	0.0069444444	0.0002158399	0.0002158399
1 lbf·in·s²	0.1129848286	1129.8482864	112984.82864	1129848.2864	112984828.64	0.0115212462	1.1521246158	6177.4173016	16	386.08858135	1	2.6811707038	0.0833333333	0.0833333327
1 lb·ft²	0.0421401101	421.40110094	42140.110094	421401.10094	42140110.094	0.0042970953	0.4297095348	2304	5.9675424534	144	0.3729714033	1	0.0310809503	0.03108095
1 lbf·ft·s²	1.3558179437	13558.179437	1355817.9437	13558179.437	1355817943.7	0.1382549539	13.82549539	74129.00762	192	4633.0629762	12	32.174048446	1	0.9999999923
1 slug·ft²	1.3558179542	13558.179542	1355817.9542	13558179.542	1355817954.2	0.138254955	13.825495497	74129.008193	192.00000148	4633.0630121	12.000000093	32.174048695	1.0000000077	1

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References: National Institute of Standards and Technology (NIST). “Unit Conversion”. https://www.nist.gov/pml/owm/metric-si/unit-conversion. Bureau International des Poids et Mesures (BIPM). “The International System of Units (SI)”. https://www.bipm.org/en/measurement-units/. Wikipedia. “Moment of inertia”. https://en.wikipedia.org/wiki/Moment_of_inertia.