I’ve built a Resistor Calculator to quickly look up resistor colour codes.

Over the past couple of years I’ve got quite into building DIY guitar pedals and other homebrew electronic projects. I use online calculators to quickly figure out resistor values, but I’ve always been surprised by how inefficient they are. To look up a single resistor value often involves eight or ten clicks, and/or they’re a pain to use on smartphone. So I’ve built a better one!

My calculator requires a maximum of five clicks per resistor, and I’ve designed it mobile-first.

Have a go: chrisjuby.com/resistors