Results

enter values for both air temperature and wind speed then click 'calculate' button

Below is a reference table in U.S. units for quick reference. Note: wind chill index values are rounded.
 

		Air Temperature (°F)
W i n d S p e e d (MPH)	Calm	40	35	30	25	20	15	10	5	0	-5	-10	-15	-20	-25	-30	-35	-40	-45
	5	36	31	25	19	13	7	1	-5	-11	-16	-22	-28	-34	-40	-46	-52	-57	-63
	10	34	27	21	15	9	3	-4	-10	-16	-22	-28	-35	-41	-47	-53	-59	-66	-72
	15	32	25	19	13	6	0	-7	-13	-19	-26	-32	-39	-45	-51	-58	-64	-71	-77
	20	30	24	17	11	4	-2	-9	-15	-22	-29	-35	-42	-48	-55	-61	-68	-74	-81
	25	29	23	16	9	3	-4	-11	-17	-24	-31	-37	-44	-51	-58	-64	-71	-78	-84
	30	28	22	15	8	1	-5	-12	-19	-26	-33	-39	-46	-53	-60	-67	-73	-80	-87
	35	28	21	14	7	0	-7	-14	-21	-27	-34	-41	-48	-55	-62	-69	-76	-82	-89
	40	27	20	13	6	-1	-8	-15	-22	-29	-36	-43	-50	-57	-64	-71	-78	-84	-91
	45	26	19	12	5	-2	-9	-16	-23	-30	-37	-44	-51	-58	-65	-72	-79	-86	-93
	50	26	19	12	4	-3	-10	-17	-24	-31	-38	-45	-52	-60	-67	-74	-81	-88	-95
	55	25	18	11	4	-3	-11	-18	-25	-32	-39	-46	-54	-61	-68	-75	-82	-89	-97
	60	25	17	10	3	-4	-11	-19	-26	-33	-40	-48	-55	-62	-69	-76	-84	-91	-98
								Frostbite occurs in less than 30 minutes

Notes:

» The wind chill index does not apply when the air temperature is above 45°F (7°C). » The wind chill index does not apply when wind speeds are less than 3 MPH (1.3 m/s). » Calculator based on WCT index from National Weather Service (implemented August 2001). » How do I use this calculator? 1. Select units of your input data [default is U.S. units]. 2. Enter the air temperature.  Use 45°F (7°C) or lower. 3. Enter wind speed.  Use 3 MPH (1.3 m/s) or higher. 4. Click on the "calculate" button and wind chill index will be displayed in the "Results" table.