About ResistCalc
Precision engineering utilities built to empower students, technicians, electrical engineers, and hardware innovators worldwide.
Our Mission
ResistCalc was established to eliminate ambiguity and calculation errors in circuit prototyping. From hobbyists building their first Arduino sensor modules to senior electrical engineers tuning high-speed analog front-ends, accurate passive component specification is critical.
We strictly adhere to international engineering standards, notably IEC 60062 (marking codes for resistors and capacitors) and IEC 60063 (preferred number series for resistors and capacitors), ensuring that every calculation reflects commercially obtainable hardware.
Engineering Precision
Rigorous algorithmic validation for 4, 5, and 6-band resistors, series-parallel network equivalents, and decade tolerances.
Global Languages
Fully localized across 18 languages to support the worldwide open-hardware and educational electronics community.
Free & Open Access
No paywalls, subscriptions, or intrusive advertisements. A reliable reference tool that loads instantly on any device.