KW to Horsepower Conversion: Complete Guide & Calculator
kW to Horsepower
The Complete Buyer's Reference
Instant converter, full formula breakdown, real-world comparisons — from your e-bike motor to your EV, generator, and everything in between.
⚡ kW ↔ HP Converter
Type any value — result updates instantly. Switch tabs for both directions.
HP = kW × 1.34102
100 kW × 1.34102 = 134.10 HP
kW = HP × 0.7457
100 HP × 0.7457 = 74.57 kW
3 Types of Horsepower — and Which One You Need
Not all HP is equal. Manufacturers pick whichever makes their product look best — here's how to decode it.
Mechanical HP (SAE)
Standard in the U.S. for car engines, generators, and most power tools. What you see on car stickers.
Metric HP (PS / CV)
Used in Europe, Asia, and South America. PS (Pferdestärke) is slightly smaller than SAE — a 100 PS car is about 98.6 SAE HP.
Electrical HP
Used for electric motors and EV specs. Nearly identical to mechanical HP — 1 Electrical HP = exactly 746 Watts.
💡 Which type are you dealing with?
kW to HP Conversion Table
From e-bike motors to supercar engines — every key power level at a glance.
| kW | HP (Mech.) | PS (Metric) | Power Level | Real-World Example | Category |
|---|---|---|---|---|---|
| 0.25 | 0.34 | 0.34 | Drill / small power tool | Tool | |
| 0.5 | 0.67 | 0.68 | Budget e-bike motor | E-Bike | |
| 0.75 | 1.01 | 1.02 | U.S. street-legal e-bike max | E-Bike | |
| 1.0 | 1.34 | 1.36 | Typical home treadmill | Fitness | |
| 2.0 | 2.68 | 2.72 | High-end treadmill / pressure washer | Tool | |
| 5.0 | 6.71 | 6.80 | Small portable generator | Generator | |
| 10 | 13.4 | 13.6 | Off-road e-bike (50 mph) | E-Bike | |
| 50 | 67.1 | 68.0 | City EV / small commuter car | EV | |
| 100 | 134.1 | 136.0 | Chevy Bolt / Nissan Leaf | EV | |
| 150 | 201.2 | 204.0 | Standard gas sedan engine | Gas | |
| 200 | 268.2 | 271.9 | Tesla Model 3 RWD | EV | |
| 300 | 402.3 | 407.9 | BMW M3 / sports car territory | Gas | |
| 500 | 670.5 | 679.8 | Porsche Taycan Turbo S | EV | |
| 750 | 1,005.8 | 1,019.7 | Rimac Nevera supercar | EV | |
| 1,000 | 1,341.0 | 1,359.6 | Bugatti Chiron (W16 engine) | Gas |
What Does Your Motor Actually Make?
Context that brings the numbers to life — across every major product category.
Best Products by kW Rating — 2026 Picks
Researched and ranked — every affiliate link is independently selected. We don't accept payment for rankings.
Aventon Level 3 — 750W
The gold standard Class 3 e-bike. Its 750W (0.75 kW) motor sits precisely at the U.S. street-legal maximum — but thanks to a torque sensor, it feels far punchier than its spec suggests, hitting the full legal 28 mph smoothly and efficiently. 4G GPS, integrated turn signals, and a 720Wh battery round out an exceptional package.
HappyRun G300 Pro — 6,500W Peak
When you need real horsepower on an e-bike, the G300 Pro's 6,500W peak motor (≈ 8.7 HP) is the entry point to motorcycle-level performance. It ships in a street-compliant 750W city mode (1 HP) and unlocks to full 6.5 kW / 8.7 HP for closed-course off-road use — hitting 50 mph with 70 miles of range on the 72V 30Ah battery.
Champion 7500W Dual Fuel Generator
7,500 running watts (7.5 kW / ~10 HP) is the sweet spot for whole-home backup power. This Champion runs on gasoline or propane, starts with electric key or remote, and can power your HVAC, fridge, and essential circuits simultaneously. One of the best-selling generators in its class with outstanding brand support.
ChargePoint Home Flex — 50A Level 2
A home EV charger's output is measured in kW — and understanding that is how you avoid buying an underpowered unit. The ChargePoint Home Flex delivers up to 11.5 kW (≈ 15.4 HP equivalent of power transfer) at 50 amps, adding up to 37 miles of range per hour of charging. Wi-Fi connected, works with every EV sold in North America, and installs in a standard 240V outlet.
⚡ Need More Power Guides?
We've broken down kW ratings, motor specs, and buying advice across every major power category below.