Power Converter
Convert between Watts, Kilowatts (kW), Megawatts (MW), Mechanical Horsepower (hp), Metric PS, and BTU/hr.
Power Converter
Quick Reference Table (Watts to Horsepower (Mechanical))
Understanding Power Converter & Formula
The Power Converter on CalculatorScale.com is engineered to deliver instant, mathematically verified calculations conforming strictly to standard institutional equations. Whether planning long-term investments, managing household budgets, tracking clinical fitness targets, analyzing academic genetics, calculating veterinary dosages, or converting dimensional units, every calculation updates dynamically in real time without lag.
Every formula used in this tool adheres to certified international standards, including World Health Organization biometric metrics, veterinary clinical guidelines, NIST physical conversion constants, and standard biological equations. Results are computed entirely client-side inside your browser with complete data privacy, ensuring your sensitive numbers and statistics never leave your device.
Our calculators are 100% free with no registration, subscriptions, or paywalls required. You can toggle between imperial and metric units, customize input parameters, export calculation summaries, or embed this calculator directly into your own website or blog.
How to Use the Power Converter
- 1 Enter power value.
- 2 Select origin unit (Watts, Kilowatts, Horsepower, Megawatts, BTU/hr).
- 3 Select destination unit to get mechanical and electrical power conversions.
Power Converter — Frequently Asked Questions
Q1 How many Watts are in one horsepower (hp)? ▾
1 mechanical horsepower (hp) equals approximately 745.7 Watts (0.7457 kW). 1 metric horsepower (PS) equals 735.5 Watts.
Q2 How do you convert Kilowatts (kW) to Horsepower (hp)? ▾
Multiply Kilowatts by 1.34102. For example, a 150 kW electric motor produces 150 × 1.34102 = 201.15 hp.
Q3 How many BTU/hour are in one Ton of Refrigeration? ▾
One Ton of Refrigeration (TR) equals exactly 12,000 BTU/hour (approx. 3.517 kW).
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