A quick two-way kWh ⇄ thm converter: type in either box, choose how many decimals you want and copy the answer with one click.
kWh
thm
Step-by-step calculation
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How to use the kWh to Therms Converter
Type a value in the Kilowatt-hours box. The therms result appears instantly.
Going the other way? Type in the Therms box, or press the ⇄ swap button.
Set the precision with the decimal places menu.
Check the working in the step-by-step box, then press Copy result or click any row in the tables below.
Kilowatt-hours to therms formula
thm = kWh ÷ 29.30011111
Take the value in kilowatt-hours.
Divide it by 29.30011111 (the number of kilowatt-hours in one therm).
Example: 100 kWh ÷ 29.30011111 = 3.41296 thm.
Reverse formula (therms to kilowatt-hours): kWh = thm × 29.30011111. Example: 1.02389 thm × 29.30011111 = 30 kWh.
Quick mental estimate: divide by about 29. For exact answers use the converter above.
kWh to thm conversion table (1–100)
Click any row to load it into the converter.
Kilowatt-hours to therms
Kilowatt-hours
Therms
1 kWh
0.0341 thm
2 kWh
0.0683 thm
3 kWh
0.1024 thm
4 kWh
0.1365 thm
5 kWh
0.1706 thm
6 kWh
0.2048 thm
7 kWh
0.2389 thm
8 kWh
0.273 thm
9 kWh
0.3072 thm
10 kWh
0.3413 thm
11 kWh
0.3754 thm
12 kWh
0.4096 thm
13 kWh
0.4437 thm
14 kWh
0.4778 thm
15 kWh
0.5119 thm
16 kWh
0.5461 thm
17 kWh
0.5802 thm
18 kWh
0.6143 thm
19 kWh
0.6485 thm
20 kWh
0.6826 thm
21 kWh
0.7167 thm
22 kWh
0.7509 thm
23 kWh
0.785 thm
24 kWh
0.8191 thm
25 kWh
0.8532 thm
26 kWh
0.8874 thm
27 kWh
0.9215 thm
28 kWh
0.9556 thm
29 kWh
0.9898 thm
30 kWh
1.0239 thm
31 kWh
1.058 thm
32 kWh
1.0921 thm
33 kWh
1.1263 thm
34 kWh
1.1604 thm
35 kWh
1.1945 thm
36 kWh
1.2287 thm
37 kWh
1.2628 thm
38 kWh
1.2969 thm
39 kWh
1.3311 thm
40 kWh
1.3652 thm
41 kWh
1.3993 thm
42 kWh
1.4334 thm
43 kWh
1.4676 thm
44 kWh
1.5017 thm
45 kWh
1.5358 thm
46 kWh
1.57 thm
47 kWh
1.6041 thm
48 kWh
1.6382 thm
49 kWh
1.6723 thm
50 kWh
1.7065 thm
51 kWh
1.7406 thm
52 kWh
1.7747 thm
53 kWh
1.8089 thm
54 kWh
1.843 thm
55 kWh
1.8771 thm
56 kWh
1.9113 thm
57 kWh
1.9454 thm
58 kWh
1.9795 thm
59 kWh
2.0136 thm
60 kWh
2.0478 thm
61 kWh
2.0819 thm
62 kWh
2.116 thm
63 kWh
2.1502 thm
64 kWh
2.1843 thm
65 kWh
2.2184 thm
66 kWh
2.2526 thm
67 kWh
2.2867 thm
68 kWh
2.3208 thm
69 kWh
2.3549 thm
70 kWh
2.3891 thm
71 kWh
2.4232 thm
72 kWh
2.4573 thm
73 kWh
2.4915 thm
74 kWh
2.5256 thm
75 kWh
2.5597 thm
76 kWh
2.5938 thm
77 kWh
2.628 thm
78 kWh
2.6621 thm
79 kWh
2.6962 thm
80 kWh
2.7304 thm
81 kWh
2.7645 thm
82 kWh
2.7986 thm
83 kWh
2.8328 thm
84 kWh
2.8669 thm
85 kWh
2.901 thm
86 kWh
2.9351 thm
87 kWh
2.9693 thm
88 kWh
3.0034 thm
89 kWh
3.0375 thm
90 kWh
3.0717 thm
91 kWh
3.1058 thm
92 kWh
3.1399 thm
93 kWh
3.174 thm
94 kWh
3.2082 thm
95 kWh
3.2423 thm
96 kWh
3.2764 thm
97 kWh
3.3106 thm
98 kWh
3.3447 thm
99 kWh
3.3788 thm
100 kWh
3.413 thm
Therms to kilowatt-hours
Therms
Kilowatt-hours
1 thm
29.3001 kWh
2 thm
58.6002 kWh
3 thm
87.9003 kWh
4 thm
117.2004 kWh
5 thm
146.5006 kWh
6 thm
175.8007 kWh
7 thm
205.1008 kWh
8 thm
234.4009 kWh
9 thm
263.701 kWh
10 thm
293.0011 kWh
11 thm
322.3012 kWh
12 thm
351.6013 kWh
13 thm
380.9014 kWh
14 thm
410.2016 kWh
15 thm
439.5017 kWh
16 thm
468.8018 kWh
17 thm
498.1019 kWh
18 thm
527.402 kWh
19 thm
556.7021 kWh
20 thm
586.0022 kWh
21 thm
615.3023 kWh
22 thm
644.6024 kWh
23 thm
673.9026 kWh
24 thm
703.2027 kWh
25 thm
732.5028 kWh
26 thm
761.8029 kWh
27 thm
791.103 kWh
28 thm
820.4031 kWh
29 thm
849.7032 kWh
30 thm
879.0033 kWh
31 thm
908.3034 kWh
32 thm
937.6036 kWh
33 thm
966.9037 kWh
34 thm
996.2038 kWh
35 thm
1,025.5039 kWh
36 thm
1,054.804 kWh
37 thm
1,084.1041 kWh
38 thm
1,113.4042 kWh
39 thm
1,142.7043 kWh
40 thm
1,172.0044 kWh
41 thm
1,201.3046 kWh
42 thm
1,230.6047 kWh
43 thm
1,259.9048 kWh
44 thm
1,289.2049 kWh
45 thm
1,318.505 kWh
46 thm
1,347.8051 kWh
47 thm
1,377.1052 kWh
48 thm
1,406.4053 kWh
49 thm
1,435.7054 kWh
50 thm
1,465.0056 kWh
51 thm
1,494.3057 kWh
52 thm
1,523.6058 kWh
53 thm
1,552.9059 kWh
54 thm
1,582.206 kWh
55 thm
1,611.5061 kWh
56 thm
1,640.8062 kWh
57 thm
1,670.1063 kWh
58 thm
1,699.4064 kWh
59 thm
1,728.7066 kWh
60 thm
1,758.0067 kWh
61 thm
1,787.3068 kWh
62 thm
1,816.6069 kWh
63 thm
1,845.907 kWh
64 thm
1,875.2071 kWh
65 thm
1,904.5072 kWh
66 thm
1,933.8073 kWh
67 thm
1,963.1074 kWh
68 thm
1,992.4076 kWh
69 thm
2,021.7077 kWh
70 thm
2,051.0078 kWh
71 thm
2,080.3079 kWh
72 thm
2,109.608 kWh
73 thm
2,138.9081 kWh
74 thm
2,168.2082 kWh
75 thm
2,197.5083 kWh
76 thm
2,226.8084 kWh
77 thm
2,256.1086 kWh
78 thm
2,285.4087 kWh
79 thm
2,314.7088 kWh
80 thm
2,344.0089 kWh
81 thm
2,373.309 kWh
82 thm
2,402.6091 kWh
83 thm
2,431.9092 kWh
84 thm
2,461.2093 kWh
85 thm
2,490.5094 kWh
86 thm
2,519.8096 kWh
87 thm
2,549.1097 kWh
88 thm
2,578.4098 kWh
89 thm
2,607.7099 kWh
90 thm
2,637.01 kWh
91 thm
2,666.3101 kWh
92 thm
2,695.6102 kWh
93 thm
2,724.9103 kWh
94 thm
2,754.2104 kWh
95 thm
2,783.5106 kWh
96 thm
2,812.8107 kWh
97 thm
2,842.1108 kWh
98 thm
2,871.4109 kWh
99 thm
2,900.711 kWh
100 thm
2,930.0111 kWh
Common values
Kilowatt-hours
Therms
Example
0.1 kWh
0.00341 thm
0.1 kWh
1 kWh
0.03 thm
1 kWh
2 kWh
0.07 thm
2 kWh
10 kWh
0.34 thm
10 kWh
30 kWh
1.02 thm
Daily US home use (approx.)
60 kWh
2.05 thm
EV battery (approx.)
100 kWh
3.41 thm
100 kWh
900 kWh
30.72 thm
Monthly US home use (approx.)
About kilowatt-hours and therms
Kilowatt-hours (kWh). A kilowatt-hour is the energy used by a 1,000-watt device running for one hour, 3.6 million joules. Electricity bills are charged per kWh.
Therms (thm). The US therm is 100,000 BTU, about 105.5 megajoules or 29.3 kWh. Natural gas bills in the US are often charged per therm.
Frequently asked questions
1 kilowatt-hour equals how many therms?
One kilowatt-hour equals 0.0341296 therms. Looking at it the other way, one therm is 29.3001 kilowatt-hours.
How do you convert kilowatt-hours to therms?
Divide the number of kilowatt-hours by 29.30011111. For example, 100 kWh ÷ 29.30011111 = 3.41296 thm.
What is 30 kilowatt-hours in therms?
30 kWh is 1.02389 thm (daily US home use (approx.)).
How much is 60 kilowatt-hours in therms?
60 kilowatt-hours equals 2.04777 therms.
How do I convert therms back to kilowatt-hours?
Multiply by 29.30011111, or press the ⇄ swap button above. For example, 1.02389 thm × 29.30011111 = 30 kWh.
How many kWh are in a therm?
One US therm is 100,000 BTU, which is about 29.3 kWh. Gas bills sometimes convert from cubic feet: 100 cubic feet of natural gas is roughly 1.03 therms.
Is a kWh the same as a kW?
No. kW is power (how fast energy is used) and kWh is energy (power × time). A 2 kW heater running for 3 hours uses 6 kWh.