Resistive voltage divider
Calculates resistors of the voltage divider network automatically. Assumes the required output current to be negligible.
| Example 1: Must calculate the resistors for a 5V to 1.25V voltage divider using 1% resistor series | View example |
You may use one of the following SI prefix after a value: p=pico, n=nano, u=micro, m=milli, k=kilo, M=mega, G=giga
| Results |
| Division ratio | 2.4:1 |
| Resistor R1 | Resistor R2 | Output voltage | Error % | Power loss |
| 15.4 kilo-ohms | 11 kilo-ohms | 10 volts | 0% | ~21.818182 milliwatts |
| 14.7 kilo-ohms | 10.5 kilo-ohms | 10 volts | 0% | ~22.857143 milliwatts |
| 51.1 kilo-ohms | 36.5 kilo-ohms | 10 volts | 0% | ~6.575342 milliwatts |
| 14 kilo-ohms | 10 kilo-ohms | 10 volts | 0% | 24 milliwatts |
| 19.6 kilo-ohms | 14 kilo-ohms | 10 volts | 0% | ~17.142857 milliwatts |
| 10.5 kilo-ohms | 7.5 kilo-ohms | 10 volts | 0% | 32 milliwatts |
| 3.01 kilo-ohms | 2.15 kilo-ohms | 10 volts | 0% | ~111.627907 milliwatts |
| 1.96 kilo-ohms | 1.4 kilo-ohms | 10 volts | 0% | ~171.428571 milliwatts |
| 1.54 kilo-ohms | 1.1 kilo-ohms | 10 volts | 0% | ~218.181818 milliwatts |
| 1.47 kilo-ohms | 1.05 kilo-ohms | 10 volts | 0% | ~228.571429 milliwatts |
| 30.1 kilo-ohms | 21.5 kilo-ohms | 10 volts | 0% | ~11.162791 milliwatts |
| 5.11 kilo-ohms | 3.65 kilo-ohms | 10 volts | 0% | ~65.753425 milliwatts |
| 1.4 kilo-ohms | 1 kilo-ohms | 10 volts | 0% | 240 milliwatts |
| 28.7 kilo-ohms | 20.5 kilo-ohms | 10 volts | 0% | ~11.707317 milliwatts |
| 2.87 kilo-ohms | 2.05 kilo-ohms | 10 volts | 0% | ~117.073171 milliwatts |
| 78.7 kilo-ohms | 56.2 kilo-ohms | ~9.998517 volts | ~0.014826% | ~4.26983 milliwatts |
| 7.87 kilo-ohms | 5.62 kilo-ohms | ~9.998517 volts | ~0.014826% | ~42.698295 milliwatts |
| 61.9 kilo-ohms | 44.2 kilo-ohms | ~9.998115 volts | ~0.01885% | ~5.428841 milliwatts |
| 6.19 kilo-ohms | 4.42 kilo-ohms | ~9.998115 volts | ~0.01885% | ~54.288407 milliwatts |
| 53.6 kilo-ohms | 38.3 kilo-ohms | ~10.002176 volts | ~0.021763% | ~6.267682 milliwatts |
| 5.36 kilo-ohms | 3.83 kilo-ohms | ~10.002176 volts | ~0.021763% | ~62.676823 milliwatts |
| 4.87 kilo-ohms | 3.48 kilo-ohms | ~10.002395 volts | ~0.023952% | ~68.982036 milliwatts |
| 48.7 kilo-ohms | 34.8 kilo-ohms | ~10.002395 volts | ~0.023952% | ~6.898204 milliwatts |
| 95.3 kilo-ohms | 68.1 kilo-ohms | ~10.002448 volts | ~0.02448% | ~3.525092 milliwatts |
| 9.53 kilo-ohms | 6.81 kilo-ohms | ~10.002448 volts | ~0.02448% | ~35.250918 milliwatts |
| 9.09 kilo-ohms | 6.49 kilo-ohms | ~9.997433 volts | ~0.025674% | ~36.970475 milliwatts |
| 90.9 kilo-ohms | 64.9 kilo-ohms | ~9.997433 volts | ~0.025674% | ~3.697047 milliwatts |
| 40.2 kilo-ohms | 28.7 kilo-ohms | ~9.997097 volts | ~0.029028% | ~8.359942 milliwatts |
| 4.02 kilo-ohms | 2.87 kilo-ohms | ~9.997097 volts | ~0.029028% | ~83.599419 milliwatts |
| 7.5 kilo-ohms | 5.36 kilo-ohms | ~10.00311 volts | ~0.031104% | ~44.790047 milliwatts |
| 75 kilo-ohms | 53.6 kilo-ohms | ~10.00311 volts | ~0.031104% | ~4.479005 milliwatts |
| 7.15 kilo-ohms | 5.11 kilo-ohms | ~10.003263 volts | ~0.032626% | ~46.982055 milliwatts |
| 71.5 kilo-ohms | 51.1 kilo-ohms | ~10.003263 volts | ~0.032626% | ~4.698206 milliwatts |
| 33.2 kilo-ohms | 23.7 kilo-ohms | ~9.996485 volts | ~0.035149% | ~10.123023 milliwatts |
| 3.32 kilo-ohms | 2.37 kilo-ohms | ~9.996485 volts | ~0.035149% | ~101.230228 milliwatts |
| 8.66 kilo-ohms | 6.19 kilo-ohms | ~10.00404 volts | ~0.040404% | ~38.787879 milliwatts |
| 86.6 kilo-ohms | 61.9 kilo-ohms | ~10.00404 volts | ~0.040404% | ~3.878788 milliwatts |
| 24.9 kilo-ohms | 17.8 kilo-ohms | ~10.004684 volts | ~0.046838% | ~13.489461 milliwatts |
| 2.49 kilo-ohms | 1.78 kilo-ohms | ~10.004684 volts | ~0.046838% | ~134.894614 milliwatts |
| 4.42 kilo-ohms | 3.16 kilo-ohms | ~10.005277 volts | ~0.05277% | ~75.989446 milliwatts |
| 44.2 kilo-ohms | 31.6 kilo-ohms | ~10.005277 volts | ~0.05277% | ~7.598945 milliwatts |
| 6.49 kilo-ohms | 4.64 kilo-ohms | ~10.005391 volts | ~0.053908% | ~51.752022 milliwatts |
| 64.9 kilo-ohms | 46.4 kilo-ohms | ~10.005391 volts | ~0.053908% | ~5.175202 milliwatts |
| 10 kilo-ohms | 7.15 kilo-ohms | ~10.005831 volts | ~0.058309% | ~33.586006 milliwatts |
| 100 kilo-ohms | 71.5 kilo-ohms | ~10.005831 volts | ~0.058309% | ~3.358601 milliwatts |
| 3.65 kilo-ohms | 2.61 kilo-ohms | ~10.00639 volts | ~0.063898% | ~92.01278 milliwatts |
| 36.5 kilo-ohms | 26.1 kilo-ohms | ~10.00639 volts | ~0.063898% | ~9.201278 milliwatts |
| 1.78 kilo-ohms | 1.27 kilo-ohms | ~9.993443 volts | ~0.065574% | ~188.852459 milliwatts |
| 17.8 kilo-ohms | 12.7 kilo-ohms | ~9.993443 volts | ~0.065574% | ~18.885246 milliwatts |
| 68.1 kilo-ohms | 48.7 kilo-ohms | ~10.006849 volts | ~0.068493% | ~4.931507 milliwatts |
