LED Resistor Calculator

Source Voltage (V)

LED Forward Voltage (V)

LED Current (mA)

Recommended Resistor:

-- Ω

Micro App Box

Secure, client-side tools for everyone. We do not store your files.

Legal

Privacy Policy
Terms of Service

Tools

PDF Tools
Image Tools
Engineering
Developer

Support Us

☕ Buy us a Coffee

© 2026 Micro App Box. All rights reserved.