Ammonia - Dynamic and Kinematic Viscosity vs. Temperature and Pressure

The viscosity of a fluid is a measure of its resistance to gradual deformation by shear stress or tensile stress .

For further definitions, go to Absolute (dynamic) and kinematic viscosity . Absolute or dynamic viscosity is used to calculate Reynold's Number to determine if a fluid flow is laminar, transient or turbulent.

Tabulated values and viscosity units conversion are given below the figures.

Online Ammonia Gas Viscosity Calculator

The calculator below can be used to calculate dynamic or kinematic viscosity of gaseous ammonia at given temperatures and atmospheric pressure.
The output dynamic viscosity is given as Pas, Ns/m², cP, mPas, lb_fs/ft² and lb_m/fth, while the kinematic viscosity is given as cSt, m²/s and ft²/s.

Note! Temperature must be within the ranges -33 - 427 °C, -28 - 800 °F, 240 - 700 K and 432-1260 °R to get valid values.

Temperature

Choose the actual unit of temperature:

°C °F K °R

See also other properties of Ammonia at varying temperature and pressure: Density and specific weight, Dynamic and kinematic viscosity, Prandtl Number, Properties at Gas-Liquid Equilibrium pressure, Specific Heat (Heat Capacity) and Thermal Conductivity, and Thermophysical properties at standard conditions and Vapour pressure at gas-liquid equilibrium,
as well as dynamic and kinematic viscosity of air, benzene, butane, carbon dioxide, ethane, ethanol, ethylene, methane, methanol, nitrogen, oxygen, propane and water.

Gaseous ammonia dynamic and kinematic viscosity at atmospheric pressure and varying temperature:

Gaseous ammonia dynamic viscosity at varying temperature and constant pressures (1-1000 bara, 14.5 - 14500 psia):

Liquid ammonia dynamic viscosity at varying temperature and constant pressures (1-1000 bara, 14.5 - 14500 psia):

Gaseous ammonia kinematic viscosity at varying temperature and constant pressures (1-10 000 bara, 14.5 - 145 000 psia):




Ammonia dynamic and kinematic viscosity at gas-liquid equilibrium pressure:

Dynamic (absolute) and kinematic viscosity of ammonia at given temperatures and pressures:

For full table with Dynamic and Kinematic Viscosity - rotate the screen!

Ammonia - Dynamic and Kinematic Viscosity vs. Temperature and Pressure

State	Temperature			Pressure			Dynamic (absolute) viscosity					Kinematic vicosity
	(K)	(°C)	(°F)	(MPa)	(bara)	(psia)	(μPa s)	(cP)	(lbf s/ft2 ×10-6)	(lbm/ft s ×10-6)	(lbm/ft h)	(cSt), (m2/s ×10-6)	(ft2/s ×10-6)
Liquid	200	-73.2	-99.7	0.1	1	15	507.7	0.5077	10.60	341.2	1.228	0.6972	7.505
	239.6	-33.6	-28.5	0.1	1	15	256.4	0.2564	5.355	172.3	0.6203	0.3758	4.045
Gas	239.6	-33.6	-28.5	0.1	1	15	8.05	0.008046	0.1680	5.407	0.01946	9.156	98.56
	300	26.9	80.3	0.1	1	15	10.16	0.010161	0.2122	6.828	0.02458	14.73	158.6
	400	127	260	0.1	1	15	13.97	0.013971	0.2918	9.388	0.03380	27.19	292.7
	500	227	440	0.1	1	15	17.86	0.017863	0.3731	12.00	0.04321	43.54	468.6
	600	327	620	0.1	1	15	21.68	0.021682	0.4528	14.57	0.05245	63.46	683.1
	700	427	800	0.1	1	15	25.39	0.025391	0.5303	17.06	0.06142	86.74	933.6
Liquid	200	-73.2	-99.7	1	10	145	509.3	0.5093	10.64	342.2	1.232	0.6991	7.525
	298.1	24.9	76.8	1	10	145	131.8	0.1318	2.753	88.58	0.3189	0.2186	2.353
Gas	298.1	24.9	76.8	1	10	145	9.831	0.009831	0.2053	6.606	0.02378	1.256	13.52
	300	26.9	80.3	1	10	145	9.912	0.009912	0.2070	6.660	0.02398	1.287	13.85
	400	127	260	1	10	145	13.93	0.01393	0.2909	9.359	0.03369	2.625	28.25
	500	227	440	1	10	145	17.88	0.01788	0.3734	12.01	0.04325	4.297	46.26
	600	327	620	1	10	145	21.72	0.02172	0.4536	14.59	0.05254	6.314	67.96
	700	427	800	1	10	145	25.43	0.02543	0.5312	17.09	0.06153	8.642	93.03
Liquid	200	-73.2	-99.7	5	50	725	517.3	0.5173	10.80	347.6	1.251	0.7088	7.630
	300	26.9	80.3	5	50	725	132.5	0.1325	2.767	89.03	0.3205	0.2194	2.362
	362.0	88.9	192.0	5	50	725	71.29	0.0713	1.489	47.91	0.1725	0.1468	1.581
Gas	362.0	88.9	192	5	50	725	12.48	0.01248	0.2605	8.383	0.03018	0.2950	3.176
	400	127	260	5	50	725	14.04	0.01404	0.2931	9.432	0.03395	0.4406	4.742
	500	227	440	5	50	725	18.07	0.01807	0.3775	12.14	0.04372	0.8134	8.756
	600	327	620	5	50	725	21.94	0.02194	0.4582	14.74	0.05308	1.237	13.31
	700	427	800	5	50	725	25.66	0.02566	0.5360	17.24	0.06208	1.721	18.52
Liquid	200	-73.2	-99.7	10	100	1450	527.3	0.5273	11.013	354.3	1.276	0.7209	7.760
	300	26.9	80.3	10	100	1450	136.4	0.1364	2.848	91.63	0.3299	0.2242	2.413
	398.3	125	257	10	100	1450	43.63	0.043632	0.9113	29.32	0.1055	0.1223	1.317
Gas	398.3	125	257	10	100	1450	17.79	0.01779	0.3716	11.96	0.04304	0.1463	1.575
	400	127	260	10	100	1450	17.23	0.01723	0.3599	11.58	0.04168	0.1546	1.664
	500	227	440	10	100	1450	18.72	0.01872	0.3910	12.58	0.04529	0.3836	4.129
	600	327	620	10	100	1450	22.39	0.02239	0.4677	15.05	0.05417	0.6073	6.537
	700	427	800	10	100	1450	26.04	0.02604	0.5438	17.49	0.06298	0.8571	9.226
Liquid	300	26.9	80.3	100	1000	14500	193.7	0.1937	4.046	130.2	0.4686	0.2917	3.140
	400	127	260	100	1000	14500	96.24	0.09624	2.010	64.67	0.2328	0.1707	1.837
	500	227	440	100	1000	14500	60.39	0.06039	1.261	40.58	0.1461	0.1310	1.410
	600	327	620	100	1000	14500	46.19	0.04619	0.9647	31.04	0.1117	0.1260	1.357
	700	427	800	100	1000	14500	41.24	0.04124	0.8613	27.71	0.0998	0.1399	1.506

Unit conversion:

Viscosity Dynamic, Absolute
centipoise (cP), gram/(centimeter second) (g/(cm s)) = poise (P),  kilogram/meter second (kg/m s)=newton second/square meter (N s/m²)= pascal second (Pa s), pound/(foot hour) (lb/(ft h)), pound/(foot second) (lb/(ft s)), reyn (reyn)

• 1 cP = 0.001 Pa s = 0.01 P = 0.01 g/(cm sec) = 6.72197×10^-4 lb/(ft s) = 2.4191 lb/(ft h)
• 1 lb/(ft h) = 0.00027778 lb/(ft s) = 0.00041338 Pa s = 0.0041338 P = 0.41338 cP
• 1 lb/(ft s) = 3600 lb/(ft h) = 1.48816 Pa s = 14.8816 P = 1488.16 cP
• 1 kg/(m s) = 1 (N s)/m²= 1 Pa s = 10 P = 1000 cP = 0.672197 lb/(ft s) = 2419.09 lb/(ft h)
• 1 (N s)/m²= 1 kg/(m s) = 1 Pa s = 10 P = 1000 cP = 0.672197 lb/(ft s) = 2419.09 lb/(ft h)
• 1 P = 1 g/(cm s) = 0.1 Pa s = 100 cP = 0.067197 lb/(ft s) = 241.909 lb/(ft h)
• 1 Pa s = 1 kg/(m s) = 1 (N s)/m²= 10 P = 1000 cP = 0.672197 lb/(ft s) = 2419.08 lb/(ft h) =  0.00014504 reyn
• 1 reyn = 6894.76 Pa s

See also Absolute or Dynamic Viscosity Unit Converter

Viscosity Kinematic
centistoke (cSt) = square millimeter/second (mm²/s), square foot/hour (ft²/h), square foot/second (ft²/s), square inch/second (in²/s), square meter/hour (m²/h), square meter/second (m²/s), stoke (St) = square centimeter/second (cm²/s)

• 1 cm²/s = 1 St = 100 mm²/s = 100 cSt = 1×10^-4 m²/s = 0.36 m²/h = 1.07639×10^-3 ft²/s = 3.875008 ft²/h = 0.1550003 in²/s
• 1 cSt = 1 mm²/s = 0.01 St = 1×10^-6 m²/s = 0.0036 m²/h = 1.07639×10^-5ft²/s = 0.03875008 ft²/h = 0.001550003 in²/s
• 1 ft²/h = 2.7778×10^-4 ft²/s = 0.04 in²/s = 2.58064×10^-5m²/s = 0.09290304 m²/h = 25.8064 cS = 0.258064 St
• 1 ft²/s = 3600 ft²/h = 144 in²/s = 0.09290304 m²/s = 334.451 m²/h = 92903.04 cSt = 929.0304 St
• 1 in²/s = 0.0069444 ft²/s = 25 ft²/h = 0.00064516 m²/s = 2.322576 m²/h = 645.16 cSt = 6.4516 St
• 1 m²/h = 1/3600 m²/s = 2.7778×10^-4 m²/s = 2.7778 cm²/s = 277.78 mm²/s = 277.78 cSt = 2.7778 St = 0.00298998 ft²/s = 10.7639 ft²/h = 0.430556 in²/s
• 1 m²/s = 3600 m²/h = 1×10⁴ cm²/s = 1×10⁴ St = 1×10⁶ mm²/s = 1×10⁶ cSt = 10.7639 ft²/s = 38750.08 ft²/h = 1550003 in²/s
• 1 mm²/s = 1 cSt = 1×10^-6 m²/s = 0.0036 m²/h = 0.01 cm²/s = 0.01 St = 1.07639×10^-5ft²/s = 0.03875008 ft²/h = 0.001550003 in²/s
• 1 St = 1 cm²/s = 100 cSt = 100 mm²/s = 1×10^-4 m²/s = 0.36 m²/h = 1.076×10^-3 ft²/s = 3.875008 ft²/h = 0.1550003 in²/s

See also Kinematic Viscosity Unit Converter