Kiloohms to Ohms Converter
Convert kiloohms to ohms for resistor datasheets, multimeter readings and schematic analysis. 1 kohm = 1000 ohms, reference table with common E12 and E24 values.
Last updated: May 2026
Enter a value to see the conversion instantly.
How to convert kiloohms to ohms
Enter a resistance value in kiloohms in the "From" field to instantly see the equivalent in ohms. The conversion uses the formula: ohms = kiloohms × 1000. You can use the preset buttons (0.1, 1, 10, 47, 100, 1000 kΩ) to quickly test common resistor values, or swap the units to convert ohms back to kiloohms.
Resistance reference: common component values
| Kiloohms | Ohms | Typical use |
|---|---|---|
| 0.1 kΩ | 100 Ω | Pull-up or pull-down resistor |
| 1 kΩ | 1000 Ω | Most common small-signal resistor |
| 4.7 kΩ | 4700 Ω | Standard I2C pull-up resistor |
| 10 kΩ | 10000 Ω | Standard signal and analog resistor |
| 47 kΩ | 47000 Ω | Common feedback or filtering resistor |
| 100 kΩ | 100000 Ω | High-impedance input resistor |
| 1000 kΩ | 1000000 Ω | Very high impedance or leakage path |
E12 and E24 standard resistor series
Resistors are not made in every value; they follow the E-series standard, where each step is spaced so that tolerance bands of adjacent values just touch. The E12 series has 12 values per decade (10% tolerance) and the E24 has 24 values (5%). Knowing which standard a value belongs to helps you identify the closest stocked resistor for any design.
| kΩ value | Ohms | Series | Typical circuit use |
|---|---|---|---|
| 0.1 kΩ | 100 Ω | E12/E24 | LED current limiter, pull-down |
| 1 kΩ | 1,000 Ω | E12/E24 | General-purpose small-signal |
| 2.2 kΩ | 2,200 Ω | E12/E24 | RC timing, voltage divider |
| 4.7 kΩ | 4,700 Ω | E12/E24 | I2C SDA/SCL pull-up (3.3 V) |
| 10 kΩ | 10,000 Ω | E12/E24 | ADC input protection, divider mid |
| 22 kΩ | 22,000 Ω | E12/E24 | Bias network, filter resistor |
| 47 kΩ | 47,000 Ω | E12/E24 | Op-amp feedback, high-Z input |
| 100 kΩ | 100,000 Ω | E12/E24 | High-impedance voltage reference |
| 1000 kΩ | 1,000,000 Ω | E6/E12 | Leakage path, ESD shunt |
When a calculated resistance falls between two E-series values, choose the nearest available value and recalculate the circuit output to confirm it stays within spec.
Frequently Asked Questions
How many ohms are in 1 kiloohm?
Exactly 1000 ohms. This is a fixed metric prefix conversion: 1 kΩ = 1000 Ω. The factor is used consistently in all electrical measurements and schematic notation worldwide.
Why are resistors listed in kiloohms on schematics?
Resistor values range from fractions of an ohm to millions of ohms. Using kiloohms makes the numbers easier to read on schematics. For example, "10 kΩ" is much clearer than "10,000 Ω" on a schematic diagram.
Can I convert decimal kiloohm values?
Yes. The converter handles any decimal value. For example, 0.5 kΩ = 500 Ω, and 2.2 kΩ = 2200 Ω. Decimals are common when reading schematics or calculating resistor values for custom circuits.
What's a practical tip for converting without this tool?
Remember that 1 kΩ = 1000 Ω. To convert kiloohms to ohms, multiply by 1000. For example, 47 kΩ × 1000 = 47,000 Ω. To go the other way, divide ohms by 1000.
When should I keep conversions in one system?
Once you've converted a resistor value, use that unit system for the rest of your circuit design. Working in mixed units introduces errors. If your schematic uses kiloohms, convert all meter readings to kiloohms for consistency.