1. What is Watt-Hour Calculation?

The watt-hour (Wh) is a unit of energy that measures electrical power consumption over time. For electric bikes, it helps determine battery capacity requirements and estimate range.

2. How Does the Calculator Work?

The calculator uses the simple formula:

Where:

• \( Wh \) — Energy in watt-hours
• \( P \) — Power in watts (W)
• \( h \) — Time in hours

Explanation: This calculation shows how much energy your electric bike consumes over a given period of time at a specific power level.

3. Importance for Electric Bikes

Details: Knowing the watt-hour consumption helps in:

• Selecting the right battery capacity
• Estimating range per charge
• Comparing energy efficiency between different e-bikes
• Calculating charging costs

4. Using the Calculator

Tips:

• Enter motor power in watts (typically 250W-750W for e-bikes)
• Enter ride duration in hours (can be decimal for partial hours)
• For variable power, use average power over the ride duration

5. Frequently Asked Questions (FAQ)

Q1: How does this relate to e-bike range?
A: Divide your battery's Wh capacity by this result to estimate how many hours you can ride at that power level.

Q2: What's a typical watt-hour consumption for e-bikes?
A: Most e-bikes consume 5-20 Wh per mile (3-12 Wh per km) depending on terrain, rider weight, and assist level.

Q3: How do I find my e-bike's power?
A: Check motor specifications - common ratings are 250W, 350W, 500W, or 750W. Note that actual power varies with assist level.

Q4: Can I use this for battery charging calculations?
A: Yes, this helps estimate how much energy you'll need to recharge after a ride.

Q5: What's the difference between watts and watt-hours?
A: Watts measure power (energy per second), watt-hours measure total energy consumed over time.