LED Array Calculator

Design LED arrays with optimal series/parallel configuration and resistor values.

LED Array Parameters

Array Configuration

4
Series
3
Parallel
12
Total LEDs

Resistor Requirements

Calculated Value180.0 Ohms
Standard Value180 Ohms
Resistors Needed3
Total Resistor Power216.0 mW

Power Analysis

Total Current60.0 mA
Total Power720.0 mW
Efficiency70.0%
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Editorial Note

MyCalcBuddy Editorial Team

This page is maintained as an educational calculator reference.

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Formula Source: Standard Mathematical References

by Various

🔄Last reviewed: May 2026
✓Formula checks are based on standard references and internal QA review.