Electronics Calculators

Instructions

Select the calculator you wish to use and enter the required values, results will update in real-time. Currently no formulae or explanations are given, this may change in a future version.

All input boxes support numerical values as well as the following suffixes: p, n, u, m, k, M and G, e.g. 1.3M, 2.7k, (RKM codes are also supported, e.g. 1M3, 2k7).

Resistor Bands

Band Color	Significant Figures	Multiplier	Tolerance
none	—	—	—	20	M
pink	PK	—	0.001	—	—
silver	SR	—	0.01	10	K
gold	GD	—	0.1	5	J
black	BK	—	1	—	—
brown	BN	1	10	1	F
red	RD	2	100	2	G
orange	OG	3	1k	0.05	W
yellow	YE	4	10k	0.02	P
green	GN	5	100k	0.5	D
blue	BU	6	1M	0.25	C
violet	VT	7	10M	0.1	B
gray	GY	8	100M	0.01	L (A)
white	WH	9	1G	—	—

Chinese Switch Names

Wire Diameter

Wire Capacity

Multiple Resistors

Multiple Capacitors

RC Filter

RL Filter

Capacitor Codes

Op-Amp Resistors

Op-Amp Voltage and Gain

Voltage Divider

Band Color		Significant Figures	Multiplier	Tolerance
Name	Code	Significant Figures	Multiplier	+/- %	Letter
none	—	—	—	20	M
pink	PK	—	0.001	—	—
silver	SR	—	0.01	10	K
gold	GD	—	0.1	5	J
black	BK	—	1	—	—
brown	BN	1	10	1	F
red	RD	2	100	2	G
orange	OG	3	1k	0.05	W
yellow	YE	4	10k	0.02	P
green	GN	5	100k	0.5	D
blue	BU	6	1M	0.25	C
violet	VT	7	10M	0.1	B
gray	GY	8	100M	0.01	L (A)
white	WH	9	1G	—	—