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First release of SMD Resistor Calculator. Decode any SMD resistor marking instantly - supports all 4 standard systems: • 3-digit EIA (e.g. 472 → 4.70 kΩ) • 4-digit EIA (e.g. 4702 → 47.0 kΩ) • EIA-96 (e.g. 64S → 45.3 Ω) • 2-character legacy codes (e.g. W4 → 68.0 kΩ) Light & dark mode. Works completely offline.
Decode 3-digit, 4-digit, EIA-96 and 2-character SMD resistor codes instantly.
Instantly decode the value of any SMD (surface-mount) resistor by entering its printed marking code. Whether you're repairing a circuit board, sorting components, or learning electronics, this app gives you a fast and reliable way to read all standard SMD resistor markings — no lookup tables, no guesswork. Supported marking systems: - 3-digit EIA (e.g. 472 → 4.70 kΩ) - 4-digit EIA (e.g. 4702 → 47.0 kΩ) - EIA-96 (e.g. 64S → 45.3 Ω) - 2-character (e.g. W4 → 68.0 kΩ) — legacy code, common on older boards All based on the IEC 60062 international standard. Key Features - All 4 standard SMD marking systems in one app - Tap digits and letters — resistance value appears instantly - Last selection remembered across sessions - Light & dark mode — follows your system theme automatically - Works completely offline - Clean, distraction-free interface Perfect for electronics engineers, repair technicians, vintage electronics enthusiasts, makers, hobbyists, and students working with SMD components. Download now and keep a complete SMD reference in your pocket.