Total Power Formula:
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Definition: This calculator estimates the total power consumption of a PC by summing the wattage of all components and recommends an appropriate PSU size.
Purpose: Helps Indian PC builders select the right power supply unit (PSU) for their system configuration.
The calculator uses the formula:
Where:
Explanation: The calculator sums all component wattages and recommends a PSU with 20% overhead for efficiency and future upgrades.
Details: Proper wattage estimation ensures system stability, prevents power-related crashes, and helps select an appropriately sized PSU for Indian voltage conditions (230V).
Tips: Enter each component's wattage (default values provided for RAM, storage). For CPU/GPU, check manufacturer specs or use common values (e.g., 65W for i5, 150W for RTX 3060).
Q1: Why is the recommended PSU higher than total wattage?
A: PSUs operate most efficiently at 50-80% load. The 20% buffer accounts for power spikes and future upgrades.
Q2: How do I find my components' wattage?
A: Check product specifications or use databases like TechPowerUp for GPUs and CPU-World for processors.
Q3: Does this account for Indian voltage fluctuations?
A: The calculation is universal, but we recommend buying PSUs with wide input voltage range (100-240V) for Indian conditions.
Q4: Should I round up the PSU wattage?
A: Yes, we automatically round up to the nearest 50W for standard PSU sizes available in India.
Q5: Does this include monitor power consumption?
A: No, this calculates only the PC's power needs. Add 20-50W for typical monitors in India.