EnergyKilocalories to Watt Hours

Kilocalories to Watt-hours

Methodology·How We Verify

Snapshot

1 Kilocalorie equals 1.162222 Watt-hours.

Reference basis: This conversion uses exact joule-based energy definitions.
Example: For 5 Kilocalories, the result equals 5.811111 Watt-hours.

Interactive conversion

Converter Calculator

Decimals: 1.5 or 1,5. Fractions: 1/2. Scientific notation: 1e3. Write 1000 without grouping separators.

1.162222 Watt-hours (Wh)

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API and AI agent access

Kilocalories to Watt-hours.

Machine-readable identifiers

Conversion family: energy
Source unit: kilocalories
Target unit: watt_hours

Use these identifiers in the API request. Sources and model limits also apply to software clients.

Example API request and response

POST /api/v1/convert

Request

{
  "family": "energy",
  "value": 1,
  "from": "kilocalories",
  "to": "watt_hours"
}

Essential response

{
  "ok": true,
  "conversion": {
    "family": "energy",
    "value": 1,
    "from": "kilocalories",
    "to": "watt_hours",
    "result": {
      "raw": 1.1622222222222223,
      "display": "1.162222"
    },
    "canonicalPath": "/energy/kilocalories-to-watt-hours/"
  }
}

API, OpenAPI and WebMCP documentation

Explanation

Multiply by 1.1622222222222223 (derived from joules) because 1 kcal = 4184 J and 1 Wh = 3600 J.

Method & Reference

Method basis: exact conversion formula shown in Snapshot.
Applied factor: 1 Kilocalorie = 1.162222 Watt-hours (using exact joule-based energy definitions).
Consistency rule: calculator output and table values use the same constants and rounding policy.

Common Conversion Values

Kilocalories (kcal)	Watt-hours (Wh)
1	1.162222
5	5.811111
10	11.622222
100	116.222222
1000	1,162.222222
3600	4,184
10000	11,622.222222
1000000	1,162,222.222222

Questions & answers

Frequently Asked Questions

What is 1 kilocalorie in watt-hours?

1 Kilocalorie equals 1.162222 Watt-hours on this page.

Does this Kilocalories to Watt-hours page use the exact relationship 1 Wh = 3,600 J?

Yes. Watt-hour and kilowatt-hour routes use the exact relationship 1 Wh = 3,600 J through one joule normalization path, so electrical energy values stay aligned across the page.

When would I convert kilocalories to watt-hours?

This route is useful when translating electrical energy values between joules, watt-hours, and kilowatt-hours for batteries, storage, and utility consumption comparisons.

How do I reverse Kilocalories to Watt-hours?

Use the mirror Watt-hours to Kilocalories route; it applies the inverse relationship with the same energy assumptions.