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Power

Browse Power conversions

1 horsepower = 178.226547 calorie per second

Reviewed June 18, 2026 Linear conversions use exact SI and international definitions where available. No account, tracking login, or third-party scoring required.
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Formula Summary

Result: 1 horsepower = 178.226547 calorie per second

Formula: (1 x 745.69987158227) / 4.184

Rounding: Displayed to 6 decimal places by default, trimmed for readability. Use Detailed or Scientific for more precision.

Real World Context

178.226547 calorie per second is approximately:

  • similar to a microwave oven
Unit Story

Horsepower

Horsepower was popularized to compare engines with working horses. It remains familiar for motors, vehicles, and machinery.

How This Conversion Works

Horsepower and calorie per second are both used for power conversions. This page converts 1 horsepower into 178.226547 calorie per second using the formula shown below.

Use this result for quick checks, comparisons, and everyday reference. For work that depends on exact precision, review the rounding setting and the assumption note before using the number.

The precision controls let you switch between a shorter result, the standard readable result, and scientific notation when the value is very large or very small.

Unit Notes
  • 1 horsepower (hp) equals 745.6998715823 watt.
  • 1 calorie per second (cal/s) equals 4.184 watt.

Questions

How do you convert horsepower to calorie per second?

This page converts horsepower to calorie per second using this formula: (1 x 745.69987158227) / 4.184.

What is 1 horsepower in calorie per second?

1 horsepower equals 178.226547 calorie per second.

How many decimals does this converter show?

Displayed to 6 decimal places by default, trimmed for readability. Use Detailed or Scientific for more precision. The precision buttons can also show a shorter result or scientific notation.

Equivalent Values
745.6998715823 watt
0.7456998716 kilowatt
0.0007456999 megawatt
1 horsepower
1.0138696654 metric horsepower
2544.433577644 BTU per hour
178.2265467453 calorie per second
641.615568283 kilocalorie per hour
Nearby Values
0.5 horsepower 89.1132733726 calorie per second
1 horsepower 178.2265467453 calorie per second
2 horsepower 356.4530934906 calorie per second
5 horsepower 891.1327337264 calorie per second
10 horsepower 1782.2654674528 calorie per second
Full Details
Formula
(1 x 745.69987158227) / 4.184
Rounding
Displayed to 6 decimal places by default, trimmed for readability. Use Detailed or Scientific for more precision.
Assumption
Power units use SI watt definitions. Horsepower is mechanical horsepower at 745.6998715822702 watts; metric horsepower is 735.49875 watts.

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