COMMON STANDARD VALUE

2.2k Resistor Color Code (2,200 Ω / 2k2)

A 2.2k ohm (2,200 Ω or 2k2) resistor is an industry staple found in I2C pull-ups, audio pre-amplifiers, and transistor base-bias loops. In the 4-band code, its stripes are Red, Red, Red, and Gold. In the 5-band precision system, its stripes are Red, Red, Black, Brown, and Brown.

Quick Answer • Color Bands BreakdownIEC 60062 Standard

4-BAND (±5%)Standard Carbon/Metal Film

Red(1st Digit (2))

Red(2nd Digit (2))

Red(Multiplier (×100))

Gold(Tolerance (±5%))

5-BAND (±1%)Precision Metal Film

Red(1st Digit (2))

Red(2nd Digit (2))

Black(3rd Digit (0))

Brown(Multiplier (×10))

Brown(Tolerance (±1%))

Customize in Live Calculator BelowTolerance: ±5% (Gold band) or ±1% (Brown band)

Technical Specifications

Nominal Value: 2.2 kΩ (2,200 Ω)
Standard Series: E12, E24, E48, E96, E192
Acceptable Measurement Range: 2,090 Ω to 2,310 Ω (at ±5%) | 2,178 Ω to 2,222 Ω (at ±1%)
Typical Power: 1/4 Watt (0.25 W) axial
Max Working Voltage: 250V (standard 1/4W)

SMD Chip Markings

2223-Digit SMD (22 × 10² = 2,200 Ω)

22014-Digit Precision SMD (220 × 10¹ = 2,200 Ω)

33BEIA-96 1% SMD (33 = 221, B = ×10)

Common Real-World Circuit Applications

Fast-mode (400 kHz) I2C bus pull-up lines on 3.3V microcontrollersAudio pre-amp line-level input impedance terminationTransistor base drive for medium power NPN/PNP switching

Interactive Tool

Resistor Color Code Calculator

Select band count and click colors below to calculate resistance and tolerance.

Resistor Band SystemShortcuts: 3 · 4 · 5 · 6

4-Band Carbon Film ResistorReading direction: Left to Right

Resistance ValueStandard E12 / E24

1kΩ±5%

Guaranteed Range:±5%

950 Ω↔1.05 kΩ

Standard SeriesE12, E24

Temp. CoefficientN/A (6-band only)

Color Band Sequence:

Common Commercial ValuesClick to load

Select Band Colors

Click any swatch to change value

Live Synced

1st Band1st Digit

2nd Band2nd Digit

3rd BandMultiplier

4th BandTolerance

Inverse Solver

Reverse Resistor Color Code Lookup

Enter resistance value in Ohms (Ω) to determine the exact color bands.

Enter Target Resistance

Live Validation

Resistance ValueExamples: 4.7k, 220, 1M, 0.47

Ohms

✓Recognized: 4.7 kΩ (4,700 Ω)

Band Count

Tolerance

Quick Presets:Click to test

Calculated Color BandsStandard E24

Exact Resistance:4.7 kΩ±5%

Color Bands Sequence (Left to Right):

Band Breakdown:

Want to tweak these bands?

FREQUENTLY ASKED QUESTIONS

Common Questions About 2.2k Resistor Color Code (2,200 Ω / 2k2)

What are the color stripes on a 2.2k resistor?▼

For a standard 4-band 2.2k resistor (±5%), the colors are Red (2), Red (2), Red (×100), and Gold (±5%). All three digit/multiplier bands are Red! For a 5-band 1% resistor, they are Red, Red, Black, Brown, and Brown.

What is the allowable range for a 2.2k ohm resistor?▼

At standard ±5% gold tolerance, acceptable resistance is between 2,090 Ω and 2,310 Ω. For a 1% precision brown band resistor, the range is 2,178 Ω to 2,222 Ω.

What is the SMD code for a 2.2k (2k2) resistor?▼

On surface-mount chips, a 2.2k resistor is stamped "222" (3-digit: 22 × 10² = 2,200 Ω), "2201" (4-digit: 220 × 10¹ = 2,200 Ω), or "33B" under the EIA-96 1% system.

IEC 60062 Standard Table

Complete Resistor Color Code Chart

View the full 12-color lookup matrix covering significant figures 0–9, multipliers from 0.01 to 1G, and tolerance bands from ±0.05% to ±20%. Includes searchable values and instant CSV export.

Explore Full Color Chart→

Engineering Guide

How to Read & Calculate Resistor Bands

Learn step-by-step reading rules, standard E-series decade values (E12, E24, E96), memory mnemonics, and surface-mount (SMD) 3-digit and EIA-96 code conversion formulas.

Read Full Engineering Guide→

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