Viscosity Conversion Factors

Approximate Viscosity Conversions

Seconds Saybolt Universal SSU	Kinematic viscosity		Seconds Saybolt Furol SSF	Seconds Redwood 1 Standard	Seconds Redwood 2 Admiralty	Degrees Engler	Degrees Barbey	Kinematic centistokes
	Centistokes	ft2/sec
31	1.00	0.00001076	—	29	—	1.00	6200	1.00
31.5	1.13	0.00001216	—	29.4	—	1.01	5486	1.13
32	1.81	0.00001948	—	29.8	—	1.08	3425	1.81
32.6	2.00	0.00002153	—	30.2	—	1.10	3100	2.00
33	2.11	0.00002271	—	30.6	—	1.11	2938	2.11
34	2.40	0.00002583	—	31.3	—	1.14	2583	2.40
35	2.71	0.00002917	—	32.1	—	1.17	2287	2.71
36	3.00	0.00003229	—	32.9	—	1.20	2066	3.00
38	3.64	0.00003918	—	33.7	—	1.26	1703	3.64
39.2	4.00	0.00004306	—	35.5	—	1.30	1550	4.00
40	4.25	0.00004575	—	36.2	5.10	1.32	1459	4.25
42	4.88	0.00005253	—	38.2	5.25	1.36	1270	4.88
42.4	5.00	0.00005382	—	38.6	5.28	1.37	1240	5.00
44	8.50	0.00005920	—	40.6	5.39	1.40	1127	5.50
45.6	6.00	0.00006458	—	41.8	5.51	1.43	1033	6.00
46	6.13	0.00006598	—	42.3	5.54	1.44	1011	6.13
46.8	7.00	0.00007535	—	43.1	5.60	1.48	885	7.00
50	7.36	0.00007922	—	44.3	5.83	1.58	842	7.36
52.1	8.00	0.00008611	—	46.0	6.03	1.64	775	8.00
55	8.88	0.00009558	—	48.3	6.30	1.73	698	8.88
55.4	9.00	0.00009688	—	48.6	6.34	1.74	689	9.00
58.8	10.00	0.0001076	—	51.3	6.66	1.83	620	10.00
60	10.32	0.0001111	—	52.3	6.77	1.87	601	10.32
65	11.72	0.0001262	—	56.7	7.19	2.01	529	11.72
70	13.08	0.0001408	—	60.9	7.60	2.16	474	13.08
75	14.38	0.0001548	—	65.1	8.02	2.37	431	14.38
80	15.66	0.0001686	—	69.2	8.44	2.45	396	15.66
85	16.90	0.0001819	—	73.4	8.87	2.59	367	16.90
90	18.12	0.0001950	—	77.6	9.30	2.73	342	18.12
95	19.32	0.0002080	—	81.6	9.71	2.88	321	19.32
100	20.52	0.0002209	—	85.6	10.12	3.02	302	20.52
120	25.15	0.0002707	—	102	11.88	3.57	246	25.15
140	29.65	0.0003191	—	119	13.63	4.11	209	29.65
160	34.10	0.0003670	—	136	15.39	4.64	182	34.10
180	38.52	0.0004146	—	153	17.14	5.12	161	38.52
200	42.95	0.0004623	—	170	18.90	5.92	144	42.95
300	64.60	0.0006953	32.7	253	28.00	8.79	96	64.60
400	86.20	0.0009275	42.4	338	37.10	11.70	71.9	86.20
500	108.00	0.001163	52.3	423	46.20	14.60	57.4	108.00
600	129.40	0.001393	62.0	507	55.30	17.50	47.9	129.40
700	151.00	0.001625	72.0	592	64.60	20.44	41.0	151.00
800	172.60	0.001858	82.0	677	73.80	23.36	35.9	172.60
900	194.20	0.002090	92.1	762	83.00	26.28	31.9	194.20
1000	215.80	0.002323	102.1	846	92.30	29.20	28.7	215.80
1200	259.00	0.002788	122	1016	111	35.1	23.9	259.00
1400	302.30	0.003254	143	1185	129	40.9	20.5	302.30
1600	345.30	0.003717	163	1354	148	46.7	18.0	345.30
1800	388.50	0.004182	183	1524	166	52.6	15.6	388.50
2000	431.70	0.004647	204	1693	185	58.4	14.4	431.70
2500	539.40	0.005806	254	2115	231	73.0	11.5	539.40
3000	647.30	0.006967	305	2538	277	87.6	9.6	647.30
3500	755.20	0.008129	356	2961	323	102	8.21	755.20
4000	863.10	0.009290	408	3385	369	117	7.18	863.10
4500	970.90	0.01045	458	3807	415	131	6.39	970.90
5000	1078.80	0.01161	509	4230	461	146	5.75	1078.80
6000	1294.60	0.01393	610	5077	553	175	4.78	1294.60
7000	1510.30	0.01626	712	5922	646	204	4.11	1510.30
8000	1726.10	0.01858	814	6769	728	234	3.59	1726.10
9000	1941.90	0.02092	916	7615	830	263	3.19	1941.90
10,000	2157.60	0.02322	1018	8461	922	292	2.87	2157.60
15,000	3236.50	0.03483	1526	12692	—	438	1.92	3236.50
20,000	4315.30	0.04645	2035	16923	—	584	1.44	4315.30

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Kinematic Viscosity

Multiply	⇒	to get
to get	⇐	Divide
ft2/sec	92903.04	centistokes
ft2/sec	0.092903	sq meters/sec
sq meters/sec	10.7639	ft2/sec
sq meters/sec	1000000.0	centistokes
centistokes	0.000001	sq meters/sec
centistokes	0.0000107639	ft2/sec

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Absolute or Dynamic Viscosity

Multiply	⇒	to get
to get	⇐	Divide
lbf-sec/ft2	47880.26	centipoises
lbf-sec/ft2	47.8803	Pascal-sec
centipoises	0.000102	kg-sec/sq meter
centipoises	0.001	lbf-sec/sq ft*
Pascal-sec	0.0208854	Pascal-sec
Pascal-sec	1000	centipoises

*Sometimes absolute viscosity is given in terms of pounds mass. In this case—centipoises x 0.000672 = lbm/ft sec.

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Absolute to Kinematic Viscosity

Multiply	⇒	to get
to get	⇐	Divide
centipoises	1/density (g/cm3)	centistokes
centipoises	0.00067197/density (lb/ft3)	ft2/sec
lbf-sec/ft2	32.174/density (lb/ft3)	ft2/sec
kg-sec/m2	9.80665/density (kg/m3)	sq meters/sec
Pascal-sec	1000/density (g/cm3)	centistokes

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Kinematic to Absolute Viscosity

Multiply	⇒	to get
to get	⇐	Divide
centistokes	density (g/cm3)	centipoises
sq meters/sec	0.10197 x density (kg/m3)	kg-sec/sq meter
ft2/sec	0.03108 x density (lb/ft3)	lbf-sec/ft2
ft2/sec	1488.16 x density (lb/ft3)	centipoises
centistokes	0.001 x density (g/cm3)	Pascal-sec
sq meters/sec	1000 x density (g/cm3)	Pascal-sec

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