Kilohms (kΩ)
The kilohm (kΩ) is 1,000 ohms. It is the most common range for resistors in electronic circuits, where values such as 1 kΩ, 4.7 kΩ and 10 kΩ appear constantly.
Convert kilohms to any resistance unit
1 kilohm = 1,000 ohms
Quick facts
- Unit
- Kilohm (plural: kilohms)
- Symbol
- kΩ
- Measures
- Electrical Resistance
- System
- SI
- Equals
- 1,000 ohms
- Definition
- 1,000 Ω.
- Also written
- kiloohm, k
1 kilohm in other units
| Ohms | 1,000 Ω |
| Megohms | 0.001 MΩ |
| Milliohms | 1,000,000 mΩ |
What is a kilohm?
The kilohm (kΩ) is 1,000 ohms. It is the most common range for resistors in electronic circuits, where values such as 1 kΩ, 4.7 kΩ and 10 kΩ appear constantly. On schematics it is often written just "k", as in 4k7 for 4.7 kΩ.
Where the kilohm sits among resistance units
The kilohm is number 5 of 10 on our scale of resistance units, ordered from smallest to largest.
What kilohms are used for
- Resistors in electronics: pull-up resistors, voltage dividers and LED current limiters.
- Sensor ratings such as 10 kΩ NTC thermistors and potentiometers.
- Skin and body resistance in electrical safety calculations.
Kilohms in real life
- A standard pull-up resistor: 10 kΩ.
- Dry human skin between hands: roughly 1–100 kΩ.
- An LED on 5 V with a 330 Ω–1 kΩ resistor draws a few milliamps.
Top kilohm conversions
Common amounts of kilohms
- 0.1 kΩ
- 0.2 kΩ
- 0.3 kΩ
- 0.4 kΩ
- 0.5 kΩ
- 0.6 kΩ
- 0.7 kΩ
- 0.8 kΩ
- 0.9 kΩ
- 1 kΩ
- 1.5 kΩ
- 2 kΩ
- 2.5 kΩ
- 3 kΩ
- 3.5 kΩ
- 4 kΩ
- 4.5 kΩ
- 5 kΩ
- 6 kΩ
- 7 kΩ
- 7.5 kΩ
- 8 kΩ
- 9 kΩ
- 10 kΩ
- 11 kΩ
- 12 kΩ
- 13 kΩ
- 14 kΩ
- 15 kΩ
- 16 kΩ
- 17 kΩ
- 18 kΩ
- 19 kΩ
- 20 kΩ
- 21 kΩ
- 22 kΩ
- 23 kΩ
- 24 kΩ
- 25 kΩ
- 26 kΩ
- 27 kΩ
- 28 kΩ
- 29 kΩ
- 30 kΩ
- 31 kΩ
- 32 kΩ
- 33 kΩ
- 34 kΩ
- 35 kΩ
- 36 kΩ
- 37 kΩ
- 38 kΩ
- 39 kΩ
- 40 kΩ
- 41 kΩ
- 42 kΩ
- 43 kΩ
- 44 kΩ
- 45 kΩ
- 46 kΩ
- 47 kΩ
- 48 kΩ
- 49 kΩ
- 50 kΩ
- 51 kΩ
- 52 kΩ
- 53 kΩ
- 54 kΩ
- 55 kΩ
- 56 kΩ
- 57 kΩ
- 58 kΩ
- 59 kΩ
- 60 kΩ
- 61 kΩ
- 62 kΩ
- 63 kΩ
- 64 kΩ
- 65 kΩ
- 66 kΩ
- 67 kΩ
- 68 kΩ
- 69 kΩ
- 70 kΩ
- 71 kΩ
- 72 kΩ
- 73 kΩ
- 74 kΩ
- 75 kΩ
- 76 kΩ
- 77 kΩ
- 78 kΩ
- 79 kΩ
- 80 kΩ
- 81 kΩ
- 82 kΩ
- 83 kΩ
- 84 kΩ
- 85 kΩ
- 86 kΩ
- 87 kΩ
- 88 kΩ
- 89 kΩ
- 90 kΩ
- 91 kΩ
- 92 kΩ
- 93 kΩ
- 94 kΩ
- 95 kΩ
- 96 kΩ
- 97 kΩ
- 98 kΩ
- 99 kΩ
- 100 kΩ
- 110 kΩ
- 120 kΩ
- 130 kΩ
- 140 kΩ
- 150 kΩ
- 160 kΩ
- 170 kΩ
- 180 kΩ
- 190 kΩ
- 200 kΩ
- 210 kΩ
- 220 kΩ
- 230 kΩ
- 240 kΩ
- 250 kΩ
- 260 kΩ
- 270 kΩ
- 280 kΩ
- 290 kΩ
- 300 kΩ
- 310 kΩ
- 320 kΩ
- 330 kΩ
- 340 kΩ
- 350 kΩ
- 360 kΩ
- 370 kΩ
- 380 kΩ
- 390 kΩ
- 400 kΩ
- 410 kΩ
- 420 kΩ
- 430 kΩ
- 440 kΩ
- 450 kΩ
- 460 kΩ
- 470 kΩ
- 480 kΩ
- 490 kΩ
- 500 kΩ
- 600 kΩ
- 700 kΩ
- 800 kΩ
- 900 kΩ
- 1,000 kΩ
- 1,200 kΩ
- 1,500 kΩ
- 2,000 kΩ
- 2,500 kΩ
- 3,000 kΩ
- 4,000 kΩ
- 5,000 kΩ
- 10,000 kΩ
Convert kilohms to all 9 other units
SI
Other
Convert to kilohms
Frequently asked questions
What is a kilohm?
The kilohm (kΩ) is 1,000 ohms. It is the most common range for resistors in electronic circuits, where values such as 1 kΩ, 4.7 kΩ and 10 kΩ appear constantly.
How is the kilohm defined?
1,000 Ω.
How many ohms are in a kilohm?
One kilohm equals 1,000 ohms.
How many megohms are in a kilohm?
One kilohm equals 0.001 megohms.
How many milliohms are in a kilohm?
One kilohm equals 1,000,000 milliohms.