Tools
Calculators we actually use
Built for our own bench, published because they are useful. No sign-up, no email gate, no tracking. Each one shows the formula it uses, so you can check it.
50 Ω trace width calculator
Microstrip and stripline trace width for a target impedance, from your stack-up. Single-ended and differential, with the copper weight accounted for.
MicrostripStriplineDifferentialIPC-2141
Open the calculator Rigid-flex bend radius calculator
Minimum bend radius from copper thickness and flex stack-up, checked against IPC-2223 outer-fibre strain limits for static and dynamic bends.
Rigid-flexIPC-2223Bend strainDynamic flex
Open the calculator Need the answer checked against a real stack-up?
A calculator gives you a starting number. Getting the fabricator to hold it is the other half — send us your stack-up and we'll tell you what is actually achievable.