1. What is Watt Consumption?

Watt consumption measures the electrical power used by a device or system over time. For PCs, it helps estimate energy usage, electricity costs, and power supply requirements.

2. How Does the Calculator Work?

The calculator uses the power consumption formula:

Where:

• \( Wh \) — Watt-hours (energy consumption)
• \( P_{components} \) — Power draw of each component (watts)
• \( h \) — Usage time in hours

Explanation: The equation sums the power draw of all PC components multiplied by the usage time to calculate total energy consumption.

3. Importance of Power Calculation

Details: Calculating watt consumption helps with selecting an appropriate power supply, estimating electricity costs, and understanding energy efficiency.

4. Using the Calculator

Tips: Enter power values for each component in watts and usage time in hours. Typical values:

• CPU: 65-125W (gaming), 15-45W (laptop)
• GPU: 75-350W (discrete), 15-50W (integrated)
• RAM: 2-5W per stick
• Storage: 5-10W (HDD), 2-5W (SSD)

5. Frequently Asked Questions (FAQ)

Q1: How accurate are these estimates?
A: Estimates are based on typical power draws. Actual consumption varies by workload, efficiency, and component models.

Q2: Should I add a safety margin for PSU selection?
A: Yes, add 20-30% to the total wattage when selecting a power supply unit.

Q3: How can I measure actual power consumption?
A: Use a watt meter at the wall outlet for most accurate measurements.

Q4: Does idle vs load power matter?
A: Yes, components use less power at idle. This calculator estimates average usage.

Q5: How does this affect my electricity bill?
A: Multiply kWh by your local electricity rate for cost estimates.