JavaScript is off. Reference tables, cheat sheets and guides below are fully readable. The calculators, search and navigation need JavaScript — everything still runs in your browser, nothing is sent anywhere. Browse all tools

Op-Amp Gain

Feedback resistors set the gain. Non-inverting: G = 1 + R_f/R_g (always ≥1, same sign). Inverting: G = −R_f/R_in (flips the signal).

Feedback Rf (Ω)

Ground Rg / input Rin (Ω)

Input voltage (V)

Non-inverting gain

—

Inverting gain

—

Output (non-inv)

—

Output (inverting)

—

Ideal op-amp. Real output is clamped by the supply rails and gain falls off with frequency (gain-bandwidth product).

A helper, not a substitute for engineering judgment. Verify against the governing standard.