This utility app helps engineers and hobbyists calculate resistor values for circuits using the Timer IC 555. Simply input frequency, duty ratio, and capacitor values to get the required resistor outputs.
555 Calc by Jibiki Works

10+ similar apps compared and reviewed
Whether you want more options like Currency Professional or a completely different take on the same concept, our curated list of 10+ similar apps has you covered. Updated for 2026 with the latest ratings and comparisons.

This utility app helps engineers and hobbyists calculate resistor values for circuits using the Timer IC 555. Simply input frequency, duty ratio, and capacitor values to get the required resistor outputs.












This app helps you manage the complexities of moving by organizing tasks and inventory. Track deadlines, subtasks, and item details for a smoother transition. Receive reminders and easily search for what you need.