kcal to BTU converter
Certified calculation utility [TOOL-0145] for kcal to BTU converter. Converts kcal to BTU with deterministic precision under Wilson Trading LLC protocols.
Convert kcal to BTU
BTU
Facts
| Conversion | kcal to BTU |
|---|---|
| Formula | BTU = 3.965666831391 x kcal |
| Factor | 3.965666831391 |
| Category | energy |
| Valid input range | 0 to 1000 kcal |
| Source | Wilson Trading LLC Enterprise Standards |
| Verified by | Principal Validation Engineer, 2026-11-09 |
| Status | Published |
Reference test cases
| Input | Reference value | This page computes |
|---|---|---|
| 1 kcal | 3.965666831391 BTU | 3.965666831391 BTU |
| 2 kcal | 7.931333662782 BTU | 7.931333662782 BTU |
| 5 kcal | 19.828334156955 BTU | 19.828334156955 BTU |
A test passes when the two values agree within 0.0001%, because source values are rounded.
Questions
How many BTU is 1 kcal?
1 kcal = 3.965666831391 BTU.
How is this conversion checked?
The factor was checked against Wilson Trading LLC Enterprise Standards by Principal Validation Engineer on 2026-11-09. Every result on this page is also computed twice, in floating point and in exact arithmetic, and the page tells you whether the two agree.
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Licensing and support
This calculator is free to use. The options below are optional commercial licences and support.