How to Convert Celsius to Kelvin (°C to K) – Temperature Converter Tool

Celsius to Kelvin Temperature Converter

Type a value in the Celsius field to convert the value to Kelvin:

Celsius

Kelvin:

Celsius to Kelvin Formula K=℃+273.15

Converting Celsius to Kelvin is essential for students studying chemistry and physics, scientists conducting experiments, and anyone working with absolute temperature measurements.

This conversion helps you understand temperature on the scientific scale used in laboratories and research worldwide.

When Do You Need This Conversion?

You’ll often need to convert Celsius to Kelvin when working in science labs, studying thermodynamics, or following chemistry recipes that require precise temperature control. Many scientific formulas and calculations specifically require temperatures in Kelvin rather than Celsius.

For example, when calculating gas pressures in chemistry class or determining reaction rates, you must use Kelvin temperatures. Weather stations also use Kelvin for atmospheric research and climate modeling.

How the Conversion Works

The celsius to kelvin formula is surprisingly simple. You just add 273.15 to any Celsius temperature to get the Kelvin equivalent. This works because Kelvin starts at absolute zero (-273.15°C), the coldest possible temperature in the universe.

Here’s how to convert celsius to kelvin in easy steps:

Take your Celsius temperature
Add 273.15 to that number
The result is your temperature in Kelvin

For instance, 25 celsius to kelvin equals 298.15 K (25 + 273.15 = 298.15). Similarly, 0 celsius to kelvin becomes 273.15 K, which represents the freezing point of water on the Kelvin scale.

Real-World Examples

Room temperature is typically around 22°C, so 22 celsius to kelvin would be 295.15 K. When you’re feeling warm at 27°C, that translates to 300.15 K in scientific terms.

Scientists prefer Kelvin because it eliminates negative numbers and makes calculations more accurate. While we use Celsius for daily weather and cooking, laboratories worldwide rely on Kelvin for precise measurements.

Quick Conversion Examples

Celsius to Kelvin Formula: K = °C + 273.15

How to Convert Celsius to Kelvin: Simply add 273.15 to your Celsius temperature

Specific Examples:

25 celsius to kelvin = 25 + 273.15 = 298.15 K
0 celsius to kelvin = 0 + 273.15 = 273.15 K (freezing point of water)
27 celsius to kelvin = 27 + 273.15 = 300.15 K (warm room temperature)
22 celsius to kelvin = 22 + 273.15 = 295.15 K (comfortable room temperature)

These examples show common temperatures you might encounter:

0°C (273.15 K) is when water freezes
22°C (295.15 K) is typical indoor comfort
25°C (298.15 K) is pleasant warm weather
27°C (300.15 K) is getting quite warm

The pattern is always the same – just add 273.15 to any Celsius value to get the Kelvin equivalent!

How to convert Celsius to Kelvin

0 degrees Celsius is equal to 273.15 degrees Kelvin:

0 °C = 273.15 K

The temperature T in Kelvin (K) is equal to the temperature T in degrees Celsius (°C) plus 273.15:

T_(K) = T_(°C) + 273.15

celsius to kelvin Formula

K=℃+273.15

Example

Convert 5 degrees Celsius to Kelvin:

T_(K) = 5°C + 273.15 = 278.15 K

Convert 20 degrees ℃ to Kelvin:

T_(K) = 20°C + 273.15 = 293.15 K

Convert 50 degrees ℃ to Kelvin:

T_(K) = 50°C + 273.15 = 323.15 K

Other Value

0 celsius to kelvin
273.15 K

37 celsius to kelvin
310.15 K

20 degrees celsius to kelvin
293.15 K

25 degree celsius to kelvin
298.15 K

0 degrees celsius to kelvin
273.15 K

30 celsius to kelvin
303.15 K

10 celsius to kelvin
283.15 K

23 celsius to kelvin
296.15 K

150 celsius to kelvin
423.15 K

26 celsius to kelvin
299.15 K

1 celsius to kelvin
274.15 K

2 celsius to kelvin
274.15 K

50 celsius to kelvin
323.15 K

24 celsius to kelvin
297.15 K

200 celsius to kelvin
473.15 K

15 celsius to kelvin
288.15 K

25 celsius to kelvin
298.15 K

100 celsius to kelvin
373.15 K

50 degrees celsius to kelvin
323.15 K

10 degrees celsius to kelvin
283.15 K

Celsius to Kelvin conversion table

Value 1 to 100

Celsius	Kelvin	Celsius	Kelvin	Celsius	Kelvin	Celsius	Kelvin
1	274.15	26	299.15	51	324.15	76	349.15
2	275.15	27	300.15	52	325.15	77	350.15
3	276.15	28	301.15	53	326.15	78	351.15
4	277.15	29	302.15	54	327.15	79	352.15
5	278.15	30	303.15	55	328.15	80	353.15
6	279.15	31	304.15	56	329.15	81	354.15
7	280.15	32	305.15	57	330.15	82	355.15
8	281.15	33	306.15	58	331.15	83	356.15
9	282.15	34	307.15	59	332.15	84	357.15
10	283.15	35	308.15	60	333.15	85	358.15
11	284.15	36	309.15	61	334.15	86	359.15
12	285.15	37	310.15	62	335.15	87	360.15
13	286.15	38	311.15	63	336.15	88	361.15
14	287.15	39	312.15	64	337.15	89	362.15
15	288.15	40	313.15	65	338.15	90	363.15
16	289.15	41	314.15	66	339.15	91	364.15
17	290.15	42	315.15	67	340.15	92	365.15
18	291.15	43	316.15	68	341.15	93	366.15
19	292.15	44	317.15	69	342.15	94	367.15
20	293.15	45	318.15	70	343.15	95	368.15
21	294.15	46	319.15	71	344.15	96	369.15
22	295.15	47	320.15	72	345.15	97	370.15
23	296.15	48	321.15	73	346.15	98	371.15
24	297.15	49	322.15	74	347.15	99	372.15
25	298.15	50	323.15	75	348.15	100	373.15

Value 101 to 200

Celsius	Kelvin	Celsius	Kelvin	Celsius	Kelvin	Celsius	Kelvin
101	374.15	126	399.15	151	424.15	176	449.15
102	375.15	127	400.15	152	425.15	177	450.15
103	376.15	128	401.15	153	426.15	178	451.15
104	377.15	129	402.15	154	427.15	179	452.15
105	378.15	130	403.15	155	428.15	180	453.15
106	379.15	131	404.15	156	429.15	181	454.15
107	380.15	132	405.15	157	430.15	182	455.15
108	381.15	133	406.15	158	431.15	183	456.15
109	382.15	134	407.15	159	432.15	184	457.15
110	383.15	135	408.15	160	433.15	185	458.15
111	384.15	136	409.15	161	434.15	186	459.15
112	385.15	137	410.15	162	435.15	187	460.15
113	386.15	138	411.15	163	436.15	188	461.15
114	387.15	139	412.15	164	437.15	189	462.15
115	388.15	140	413.15	165	438.15	190	463.15
116	389.15	141	414.15	166	439.15	191	464.15
117	390.15	142	415.15	167	440.15	192	465.15
118	391.15	143	416.15	168	441.15	193	466.15
119	392.15	144	417.15	169	442.15	194	467.15
120	393.15	145	418.15	170	443.15	195	468.15
121	394.15	146	419.15	171	444.15	196	469.15
122	395.15	147	420.15	172	445.15	197	470.15
123	396.15	148	421.15	173	446.15	198	471.15
124	397.15	149	422.15	174	447.15	199	472.15
125	398.15	150	423.15	175	448.15	200	473.15

Value 201 to 300

Celsius	Kelvin	Celsius	Kelvin	Celsius	Kelvin	Celsius	Kelvin
301	574.15	326	599.15	351	624.15	376	649.15
302	575.15	327	600.15	352	625.15	377	650.15
303	576.15	328	601.15	353	626.15	378	651.15
304	577.15	329	602.15	354	627.15	379	652.15
305	578.15	330	603.15	355	628.15	380	653.15
306	579.15	331	604.15	356	629.15	381	654.15
307	580.15	332	605.15	357	630.15	382	655.15
308	581.15	333	606.15	358	631.15	383	656.15
309	582.15	334	607.15	359	632.15	384	657.15
310	583.15	335	608.15	360	633.15	385	658.15
311	584.15	336	609.15	361	634.15	386	659.15
312	585.15	337	610.15	362	635.15	387	660.15
313	586.15	338	611.15	363	636.15	388	661.15
314	587.15	339	612.15	364	637.15	389	662.15
315	588.15	340	613.15	365	638.15	390	663.15
316	589.15	341	614.15	366	639.15	391	664.15
317	590.15	342	615.15	367	640.15	392	665.15
318	591.15	343	616.15	368	641.15	393	666.15
319	592.15	344	617.15	369	642.15	394	667.15
320	593.15	345	618.15	370	643.15	395	668.15
321	594.15	346	619.15	371	644.15	396	669.15
322	595.15	347	620.15	372	645.15	397	670.15
323	596.15	348	621.15	373	646.15	398	671.15
324	597.15	349	622.15	374	647.15	399	672.15
325	598.15	350	623.15	375	648.15	400	673.15

Value 401 to 500

Celsius	Kelvin	Celsius	Kelvin	Celsius	Kelvin	Celsius	Kelvin
401	674.15	426	699.15	451	724.15	476	749.15
402	675.15	427	700.15	452	725.15	477	750.15
403	676.15	428	701.15	453	726.15	478	751.15
404	677.15	429	702.15	454	727.15	479	752.15
405	678.15	430	703.15	455	728.15	480	753.15
406	679.15	431	704.15	456	729.15	481	754.15
407	680.15	432	705.15	457	730.15	482	755.15
408	681.15	433	706.15	458	731.15	483	756.15
409	682.15	434	707.15	459	732.15	484	757.15
410	683.15	435	708.15	460	733.15	485	758.15
411	684.15	436	709.15	461	734.15	486	759.15
412	685.15	437	710.15	462	735.15	487	760.15
413	686.15	438	711.15	463	736.15	488	761.15
414	687.15	439	712.15	464	737.15	489	762.15
415	688.15	440	713.15	465	738.15	490	763.15
416	689.15	441	714.15	466	739.15	491	764.15
417	690.15	442	715.15	467	740.15	492	765.15
418	691.15	443	716.15	468	741.15	493	766.15
419	692.15	444	717.15	469	742.15	494	767.15
420	693.15	445	718.15	470	743.15	495	768.15
421	694.15	446	719.15	471	744.15	496	769.15
422	695.15	447	720.15	472	745.15	497	770.15
423	696.15	448	721.15	473	746.15	498	771.15
424	697.15	449	722.15	474	747.15	499	772.15
425	698.15	450	723.15	475	748.15	500	773.15

Value 501 to 600

Celsius	Kelvin	Celsius	Kelvin	Celsius	Kelvin	Celsius	Kelvin
501	774.15	526	799.15	551	824.15	576	849.15
502	775.15	527	800.15	552	825.15	577	850.15
503	776.15	528	801.15	553	826.15	578	851.15
504	777.15	529	802.15	554	827.15	579	852.15
505	778.15	530	803.15	555	828.15	580	853.15
506	779.15	531	804.15	556	829.15	581	854.15
507	780.15	532	805.15	557	830.15	582	855.15
508	781.15	533	806.15	558	831.15	583	856.15
509	782.15	534	807.15	559	832.15	584	857.15
510	783.15	535	808.15	560	833.15	585	858.15
511	784.15	536	809.15	561	834.15	586	859.15
512	785.15	537	810.15	562	835.15	587	860.15
513	786.15	538	811.15	563	836.15	588	861.15
514	787.15	539	812.15	564	837.15	589	862.15
515	788.15	540	813.15	565	838.15	590	863.15
516	789.15	541	814.15	566	839.15	591	864.15
517	790.15	542	815.15	567	840.15	592	865.15
518	791.15	543	816.15	568	841.15	593	866.15
519	792.15	544	817.15	569	842.15	594	867.15
520	793.15	545	818.15	570	843.15	595	868.15
521	794.15	546	819.15	571	844.15	596	869.15
522	795.15	547	820.15	572	845.15	597	870.15
523	796.15	548	821.15	573	846.15	598	871.15
524	797.15	549	822.15	574	847.15	599	872.15
525	798.15	550	823.15	575	848.15	600	873.15

Value 601 to 700

Celsius	Kelvin	Celsius	Kelvin	Celsius	Kelvin	Celsius	Kelvin
601	874.15	626	899.15	651	924.15	676	949.15
602	875.15	627	900.15	652	925.15	677	950.15
603	876.15	628	901.15	653	926.15	678	951.15
604	877.15	629	902.15	654	927.15	679	952.15
605	878.15	630	903.15	655	928.15	680	953.15
606	879.15	631	904.15	656	929.15	681	954.15
607	880.15	632	905.15	657	930.15	682	955.15
608	881.15	633	906.15	658	931.15	683	956.15
609	882.15	634	907.15	659	932.15	684	957.15
610	883.15	635	908.15	660	933.15	685	958.15
611	884.15	636	909.15	661	934.15	686	959.15
612	885.15	637	910.15	662	935.15	687	960.15
613	886.15	638	911.15	663	936.15	688	961.15
614	887.15	639	912.15	664	937.15	689	962.15
615	888.15	640	913.15	665	938.15	690	963.15
616	889.15	641	914.15	666	939.15	691	964.15
617	890.15	642	915.15	667	940.15	692	965.15
618	891.15	643	916.15	668	941.15	693	966.15
619	892.15	644	917.15	669	942.15	694	967.15
620	893.15	645	918.15	670	943.15	695	968.15
621	894.15	646	919.15	671	944.15	696	969.15
622	895.15	647	920.15	672	945.15	697	970.15
623	896.15	648	921.15	673	946.15	698	971.15
624	897.15	649	922.15	674	947.15	699	972.15
625	898.15	650	923.15	675	948.15	700	973.15

Value 701 to 800

Celsius	Kelvin	Celsius	Kelvin	Celsius	Kelvin	Celsius	Kelvin
701	974.15	726	999.15	751	1024.15	776	1049.15
702	975.15	727	1000.15	752	1025.15	777	1050.15
703	976.15	728	1001.15	753	1026.15	778	1051.15
704	977.15	729	1002.15	754	1027.15	779	1052.15
705	978.15	730	1003.15	755	1028.15	780	1053.15
706	979.15	731	1004.15	756	1029.15	781	1054.15
707	980.15	732	1005.15	757	1030.15	782	1055.15
708	981.15	733	1006.15	758	1031.15	783	1056.15
709	982.15	734	1007.15	759	1032.15	784	1057.15
710	983.15	735	1008.15	760	1033.15	785	1058.15
711	984.15	736	1009.15	761	1034.15	786	1059.15
712	985.15	737	1010.15	762	1035.15	787	1060.15
713	986.15	738	1011.15	763	1036.15	788	1061.15
714	987.15	739	1012.15	764	1037.15	789	1062.15
715	988.15	740	1013.15	765	1038.15	790	1063.15
716	989.15	741	1014.15	766	1039.15	791	1064.15
717	990.15	742	1015.15	767	1040.15	792	1065.15
718	991.15	743	1016.15	768	1041.15	793	1066.15
719	992.15	744	1017.15	769	1042.15	794	1067.15
720	993.15	745	1018.15	770	1043.15	795	1068.15
721	994.15	746	1019.15	771	1044.15	796	1069.15
722	995.15	747	1020.15	772	1045.15	797	1070.15
723	996.15	748	1021.15	773	1046.15	798	1071.15
724	997.15	749	1022.15	774	1047.15	799	1072.15
725	998.15	750	1023.15	775	1048.15	800	1073.15

Value 801 to 900

Celsius	Kelvin	Celsius	Kelvin	Celsius	Kelvin	Celsius	Kelvin
801	1074.15	826	1099.15	851	1124.15	876	1149.15
802	1075.15	827	1100.15	852	1125.15	877	1150.15
803	1076.15	828	1101.15	853	1126.15	878	1151.15
804	1077.15	829	1102.15	854	1127.15	879	1152.15
805	1078.15	830	1103.15	855	1128.15	880	1153.15
806	1079.15	831	1104.15	856	1129.15	881	1154.15
807	1080.15	832	1105.15	857	1130.15	882	1155.15
808	1081.15	833	1106.15	858	1131.15	883	1156.15
809	1082.15	834	1107.15	859	1132.15	884	1157.15
810	1083.15	835	1108.15	860	1133.15	885	1158.15
811	1084.15	836	1109.15	861	1134.15	886	1159.15
812	1085.15	837	1110.15	862	1135.15	887	1160.15
813	1086.15	838	1111.15	863	1136.15	888	1161.15
814	1087.15	839	1112.15	864	1137.15	889	1162.15
815	1088.15	840	1113.15	865	1138.15	890	1163.15
816	1089.15	841	1114.15	866	1139.15	891	1164.15
817	1090.15	842	1115.15	867	1140.15	892	1165.15
818	1091.15	843	1116.15	868	1141.15	893	1166.15
819	1092.15	844	1117.15	869	1142.15	894	1167.15
820	1093.15	845	1118.15	870	1143.15	895	1168.15
821	1094.15	846	1119.15	871	1144.15	896	1169.15
822	1095.15	847	1120.15	872	1145.15	897	1170.15
823	1096.15	848	1121.15	873	1146.15	898	1171.15
824	1097.15	849	1122.15	874	1147.15	899	1172.15
825	1098.15	850	1123.15	875	1148.15	900	1173.15

Value 900 to 1000

Celsius	Kelvin	Celsius	Kelvin	Celsius	Kelvin	Celsius	Kelvin
901	1174.15	926	1199.15	951	1224.15	976	1249.15
902	1175.15	927	1200.15	952	1225.15	977	1250.15
903	1176.15	928	1201.15	953	1226.15	978	1251.15
904	1177.15	929	1202.15	954	1227.15	979	1252.15
905	1178.15	930	1203.15	955	1228.15	980	1253.15
906	1179.15	931	1204.15	956	1229.15	981	1254.15
907	1180.15	932	1205.15	957	1230.15	982	1255.15
908	1181.15	933	1206.15	958	1231.15	983	1256.15
909	1182.15	934	1207.15	959	1232.15	984	1257.15
910	1183.15	935	1208.15	960	1233.15	985	1258.15
911	1184.15	936	1209.15	961	1234.15	986	1259.15
912	1185.15	937	1210.15	962	1235.15	987	1260.15
913	1186.15	938	1211.15	963	1236.15	988	1261.15
914	1187.15	939	1212.15	964	1237.15	989	1262.15
915	1188.15	940	1213.15	965	1238.15	990	1263.15
916	1189.15	941	1214.15	966	1239.15	991	1264.15
917	1190.15	942	1215.15	967	1240.15	992	1265.15
918	1191.15	943	1216.15	968	1241.15	993	1266.15
919	1192.15	944	1217.15	969	1242.15	994	1267.15
920	1193.15	945	1218.15	970	1243.15	995	1268.15
921	1194.15	946	1219.15	971	1244.15	996	1269.15
922	1195.15	947	1220.15	972	1245.15	997	1270.15
923	1196.15	948	1221.15	973	1246.15	998	1271.15
924	1197.15	949	1222.15	974	1247.15	999	1272.15
925	1198.15	950	1223.15	975	1248.15	1000	1273.15

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Frequently Asked Questions

Why do scientists use Kelvin instead of Celsius?

Kelvin starts at absolute zero, making it perfect for scientific calculations. It eliminates negative temperatures and provides more accurate results in physics and chemistry formulas.

Is the Kelvin conversion the same for all temperatures?

Yes, you always add 273.15 to any Celsius temperature to get Kelvin. The difference between the scales remains constant throughout the entire temperature range.

What temperature is absolute zero in Celsius?

Absolute zero equals -273.15°C, which is 0 K on the Kelvin scale. This represents the theoretical point where all molecular motion stops completely.

Do I need to write the degree symbol for Kelvin?

No, Kelvin temperatures are written without the degree symbol. Use “K” instead of “°K” – so 300 K is correct, not 300°K.

Convert from Fahrenheit to Celsius	℃=(℉-32)/1.8
Convert from Fahrenheit to Kelvin	K=((℉-32)/1.8)+273.15
Convert from Celsius to Fahrenheit	℉=(℃*1.8)+32
Convert from Celsius to Kelvin	K=℃+273.15
Convert from Kelvin to Fahrenheit	℉=((K-273.15)*1.8)+32
Convert from Kelvin to Celsius	℃=K-273.15