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Calorie (small) to Therm (US) (cal → thm)

Convert calorie (small) to therm (us) instantly. The conversion factor below is exact by international definition.

Realtime·energy·metric
Exact
cal
× 0
thm
0.00000004
Precision [auto]
6

📐cal to thm formulaExact

thm = cal × 3.965667e-8
Inverse: cal = thm × 2.521644e+7

Worked example: 1 cal = 3.965667e-8 thm

ℹ️About these units

Calorie (small) (cal)
Source: Thermochemical calorie (NIST).
Therm (US) (thm)
US natural gas billing.

📊Reference table: cal → thm

Calorie (small) (cal)Therm (US) (thm)
10.00000004
20.00000008
50.0000002
100.0000004
150.00000059
200.00000079
250.00000099
500.00000198
1000.00000397
2500.00000991
5000.00001983
7500.00002974
1,0000.00003966

Want a downloadable CSV? Append ?format=csv to the API /api/v1/table endpoint.

🔁Reverse & related

Reverse: thm → calcal → Jcal → kJcal → MJcal → GJcal → kcalcal → Whcal → kWhcal → MWh

🔌API & widget

GET https://convertnavi.com/api/v1/convert?value=10&from=calorie&to=therm
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<div data-convertnavi="calorie->therm"></div>
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