Kiloohms to Ohms Converter (kΩ to Ω)
Convert kiloohms to ohms (kΩ to Ω) with Ohm's Law current calculation. See results in ohms, megaohms, milliohms, and milliamps at your chosen voltage.
RESISTANCE IN OHMS
4,700 Ω
0.0047 MΩ
4,700,000 mΩ
1.064 mA
4.7 × 1000
Kiloohms to Ohms — Quick Reference
| Kiloohms | Ohms | Megaohms | Current at 5V |
|---|---|---|---|
| 0.1 kΩ | 100 Ω | 0.0001 MΩ | 50.000 mA |
| 0.22 kΩ | 220 Ω | 0.0002 MΩ | 22.727 mA |
| 0.47 kΩ | 470 Ω | 0.0005 MΩ | 10.638 mA |
| 1 kΩ | 1,000 Ω | 0.0010 MΩ | 5.000 mA |
| 2.2 kΩ | 2,200 Ω | 0.0022 MΩ | 2.273 mA |
| 4.7 kΩ | 4,700 Ω | 0.0047 MΩ | 1.064 mA |
| 10 kΩ | 10,000 Ω | 0.0100 MΩ | 0.500 mA |
| 22 kΩ | 22,000 Ω | 0.0220 MΩ | 0.227 mA |
| 47 kΩ | 47,000 Ω | 0.0470 MΩ | 0.106 mA |
| 100 kΩ | 100,000 Ω | 0.1000 MΩ | 0.050 mA |
| 220 kΩ | 220,000 Ω | 0.2200 MΩ | 0.023 mA |
| 470 kΩ | 470,000 Ω | 0.4700 MΩ | 0.011 mA |
How to Convert Kiloohms to Ohms
The prefix "kilo" means 1,000, so 1 kiloohm = 1,000 ohms. Simply multiply by 1,000:
Example: 4.7 kΩ = 4.7 × 1,000 = 4,700 Ω
Example: 0.47 kΩ = 0.47 × 1,000 = 470 Ω
Example: 100 kΩ = 100 × 1,000 = 100,000 Ω
Ohm's Law — V = I × R
Ohm's Law is the fundamental relationship between voltage (V), current (I), and resistance (R):
| Find | Formula | Example (4.7 kΩ, 5V) |
|---|---|---|
| Voltage (V) | V = I × R | V = 0.001064A × 4700Ω = 5V |
| Current (I) | I = V / R | I = 5V / 4700Ω = 1.064 mA |
| Resistance (R) | R = V / I | R = 5V / 0.001064A = 4700Ω |
This calculator automatically shows the current at your chosen voltage using I = V/R.
Resistance Unit Prefixes
| Unit | Symbol | In Ohms | Example |
|---|---|---|---|
| Milliohm | mΩ | 0.001 Ω | Wire resistance |
| Ohm | Ω | 1 Ω | Base unit |
| Kiloohm | kΩ | 1,000 Ω | Most resistors |
| Megaohm | MΩ | 1,000,000 Ω | Insulation testing |
| Gigaohm | GΩ | 1,000,000,000 Ω | Air insulation |
Common Resistor Values (E24 Series)
Standard resistors come in preferred values. Here are the most common kΩ resistors used in electronics:
| kΩ Value | Ohms | Typical Use |
|---|---|---|
| 0.1 kΩ | 100 Ω | Current sensing, LED with 3.3V |
| 0.22 kΩ | 220 Ω | Standard LED resistor (5V) |
| 0.47 kΩ | 470 Ω | Signal line termination |
| 1 kΩ | 1,000 Ω | General purpose, voltage dividers |
| 2.2 kΩ | 2,200 Ω | I²C bus pull-ups (3.3V) |
| 4.7 kΩ | 4,700 Ω | I²C bus pull-ups (5V), biasing |
| 10 kΩ | 10,000 Ω | Pull-up/pull-down, potentiometers |
| 47 kΩ | 47,000 Ω | Audio circuits, filters |
| 100 kΩ | 100,000 Ω | High-impedance inputs, biasing |
| 470 kΩ | 470,000 Ω | Timing circuits, high-Z sensing |
| 1,000 kΩ | 1,000,000 Ω (1 MΩ) | ESD protection, input impedance |
What Is a Kiloohm?
A kiloohm (kΩ) is a unit of electrical resistance equal to 1,000 ohms. It is the most commonly used unit for expressing resistor values in electronics. The majority of through-hole and surface-mount resistors used in hobby projects, Arduino circuits, and consumer electronics fall in the 0.1kΩ–100kΩ range.
What Is an Ohm?
An ohm (Ω) is the SI unit of electrical resistance, named after German physicist Georg Simon Ohm. One ohm is defined as the resistance that allows one ampere of current to flow when one volt is applied. The ohm is used in every branch of electrical engineering, from household wiring to semiconductor design.