⚡ Resistor Color Code Calculator

Select bands below

0 Ω

4-Band Resistor Color Code

Band 1 (Digit):

Band 2 (Digit):

Multiplier:

Tolerance:

5-Band Resistor Color Code

Band 1 (Digit):

Band 2 (Digit):

Band 3 (Digit):

Multiplier:

Tolerance:

6-Band Resistor Color Code (with TCR)

Band 1 (Digit):

Band 2 (Digit):

Band 3 (Digit):

Multiplier:

Tolerance:

TCR (ppm/K):

Ohm's Law: V = I × R

Voltage (V):

Current (I):

Resistance (R):

Capacitor Charge / Discharge

Supply Voltage V₀ (V):

Resistance R (Ω):

Capacitance C (F):

Time t (s):

Mode:

Reactance Calculator

Frequency f (Hz):

Inductance L (H):

Capacitance C (F):

Power Formulas

Formula:

Voltage V (V):

Current I (A):

Resistance R (Ω):

Unit Prefix Conversion

Value:

From:

To: