1. What is Watts Per Kg?

Watts per kilogram (W/kg) is a key cycling metric that measures a rider's power output relative to their body weight. It's a crucial indicator of cycling performance, especially for climbing and endurance events.

2. How Does the Calculator Work?

The calculator uses the simple formula:

Where:

• \( power \) — Cyclist's power output in watts (W)
• \( weight\_kg \) — Cyclist's body weight in kilograms (kg)

Explanation: The calculation divides your power output by your body weight to determine how many watts you're producing for each kilogram of body mass.

3. Importance of Power to Weight Ratio

Details: W/kg is especially important for climbing performance, as gravity affects lighter riders less. Higher W/kg values indicate better climbing ability and overall cycling performance.

4. Using the Calculator

Tips: Enter your power output in watts (from a power meter or cycling test) and your weight in kilograms. Both values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What is a good W/kg for amateur cyclists?
A: For amateur cyclists, 2-3 W/kg is decent, 3-4 W/kg is good, and 4+ W/kg is excellent for sustained efforts.

Q2: How do pro cyclists compare?
A: Professional cyclists can sustain 5-6 W/kg for extended periods, with sprint peaks over 7 W/kg.

Q3: Should I focus on increasing power or losing weight?
A: Both strategies improve W/kg, but the optimal approach depends on your current fitness and body composition.

Q4: Does this apply to flat terrain?
A: While still relevant, absolute power becomes more important on flat terrain where aerodynamics dominate.

Q5: How can I improve my W/kg?
A: Through structured training to increase power and/or healthy weight management to reduce mass.