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
| Resistor R1 | Resistor R2 | Output voltage | Error % | Power loss |
| 10.2 kilo-ohms | 3.4 kilo-ohms | 1.25 volts | 0% | ~1.838235 milliwatts |
| 11.5 kilo-ohms | 3.83 kilo-ohms | ~1.249185 volts | ~0.065232% | ~1.630789 milliwatts |
| 10.7 kilo-ohms | 3.57 kilo-ohms | ~1.250876 volts | ~0.070077% | ~1.751927 milliwatts |
| 5.62 kilo-ohms | 1.87 kilo-ohms | ~1.248331 volts | ~0.133511% | ~3.337784 milliwatts |
| 56.2 kilo-ohms | 18.7 kilo-ohms | ~1.248331 volts | ~0.133511% | ~333.778371 microwatts |
| 16.5 kilo-ohms | 5.49 kilo-ohms | ~1.248295 volts | ~0.136426% | ~1.13688 milliwatts |
| 5.23 kilo-ohms | 1.74 kilo-ohms | ~1.248207 volts | ~0.143472% | ~3.586801 milliwatts |
| 52.3 kilo-ohms | 17.4 kilo-ohms | ~1.248207 volts | ~0.143472% | ~358.680057 microwatts |
| 15 kilo-ohms | 4.99 kilo-ohms | ~1.248124 volts | ~0.150075% | ~1.250625 milliwatts |
| 4.87 kilo-ohms | 1.62 kilo-ohms | ~1.248074 volts | ~0.154083% | ~3.85208 milliwatts |
| 48.7 kilo-ohms | 16.2 kilo-ohms | ~1.248074 volts | ~0.154083% | ~385.208012 microwatts |
| 47.5 kilo-ohms | 15.8 kilo-ohms | ~1.248025 volts | ~0.157978% | ~394.944708 microwatts |
| 4.75 kilo-ohms | 1.58 kilo-ohms | ~1.248025 volts | ~0.157978% | ~3.949447 milliwatts |
| 44.2 kilo-ohms | 14.7 kilo-ohms | ~1.247878 volts | ~0.169779% | ~424.448217 microwatts |
| 4.42 kilo-ohms | 1.47 kilo-ohms | ~1.247878 volts | ~0.169779% | ~4.244482 milliwatts |
| 21.5 kilo-ohms | 7.15 kilo-ohms | ~1.247818 volts | ~0.17452% | ~872.600349 microwatts |
| 16.9 kilo-ohms | 5.62 kilo-ohms | ~1.24778 volts | ~0.17762% | ~1.110124 milliwatts |
| 4.12 kilo-ohms | 1.37 kilo-ohms | ~1.247723 volts | ~0.182149% | ~4.553734 milliwatts |
| 41.2 kilo-ohms | 13.7 kilo-ohms | ~1.247723 volts | ~0.182149% | ~455.373406 microwatts |
| 28 kilo-ohms | 9.31 kilo-ohms | ~1.247655 volts | ~0.187617% | ~670.061646 microwatts |
| 20 kilo-ohms | 6.65 kilo-ohms | ~1.247655 volts | ~0.187617% | ~938.086304 microwatts |
| 21 kilo-ohms | 6.98 kilo-ohms | ~1.24732 volts | ~0.214439% | ~893.495354 microwatts |
| 69.8 kilo-ohms | 23.2 kilo-ohms | ~1.247312 volts | ~0.215054% | ~268.817204 microwatts |
| 6.98 kilo-ohms | 2.32 kilo-ohms | ~1.247312 volts | ~0.215054% | ~2.688172 milliwatts |
| 3.4 kilo-ohms | 1.13 kilo-ohms | ~1.247241 volts | ~0.220751% | ~5.518764 milliwatts |
| 34 kilo-ohms | 11.3 kilo-ohms | ~1.247241 volts | ~0.220751% | ~551.87638 microwatts |
| 6.65 kilo-ohms | 2.21 kilo-ohms | ~1.247178 volts | ~0.225734% | ~2.82167 milliwatts |
| 13.3 kilo-ohms | 4.42 kilo-ohms | ~1.247178 volts | ~0.225734% | ~1.410835 milliwatts |
| 66.5 kilo-ohms | 22.1 kilo-ohms | ~1.247178 volts | ~0.225734% | ~282.167043 microwatts |
| 13 kilo-ohms | 4.32 kilo-ohms | ~1.247113 volts | ~0.230947% | ~1.443418 milliwatts |
| 12.7 kilo-ohms | 4.22 kilo-ohms | ~1.247045 volts | ~0.236407% | ~1.477541 milliwatts |
| 31.6 kilo-ohms | 10.5 kilo-ohms | ~1.247031 volts | ~0.23753% | ~593.824228 microwatts |
| 3.16 kilo-ohms | 1.05 kilo-ohms | ~1.247031 volts | ~0.23753% | ~5.938242 milliwatts |
| 12.4 kilo-ohms | 4.12 kilo-ohms | ~1.246973 volts | ~0.242131% | ~1.513317 milliwatts |
| 12.1 kilo-ohms | 4.02 kilo-ohms | ~1.246898 volts | ~0.248139% | ~1.550868 milliwatts |
| 30.1 kilo-ohms | 10 kilo-ohms | ~1.246883 volts | ~0.249377% | ~623.441397 microwatts |
| 3.01 kilo-ohms | 1 kilo-ohms | ~1.246883 volts | ~0.249377% | ~6.234414 milliwatts |
| 26.7 kilo-ohms | 8.87 kilo-ohms | ~1.246837 volts | ~0.253022% | ~702.839471 microwatts |
| 11.8 kilo-ohms | 3.92 kilo-ohms | ~1.246819 volts | ~0.254453% | ~1.590331 milliwatts |
| 59 kilo-ohms | 19.6 kilo-ohms | ~1.246819 volts | ~0.254453% | ~318.066158 microwatts |
| 5.9 kilo-ohms | 1.96 kilo-ohms | ~1.246819 volts | ~0.254453% | ~3.180662 milliwatts |
| 20.5 kilo-ohms | 6.81 kilo-ohms | ~1.246796 volts | ~0.256316% | ~915.415599 microwatts |
| 14.3 kilo-ohms | 4.75 kilo-ohms | ~1.246719 volts | ~0.262467% | ~1.312336 milliwatts |
| 8.25 kilo-ohms | 2.74 kilo-ohms | ~1.246588 volts | ~0.272975% | ~2.274795 milliwatts |
| 82.5 kilo-ohms | 27.4 kilo-ohms | ~1.246588 volts | ~0.272975% | ~227.479527 microwatts |
| 53.6 kilo-ohms | 17.8 kilo-ohms | ~1.246499 volts | ~0.280112% | ~350.140056 microwatts |
| 5.36 kilo-ohms | 1.78 kilo-ohms | ~1.246499 volts | ~0.280112% | ~3.501401 milliwatts |
| 23.7 kilo-ohms | 7.87 kilo-ohms | ~1.246436 volts | ~0.285081% | ~791.891036 microwatts |
| 28.7 kilo-ohms | 9.53 kilo-ohms | ~1.246403 volts | ~0.287732% | ~653.936699 microwatts |
| 7.68 kilo-ohms | 2.55 kilo-ohms | ~1.246334 volts | ~0.293255% | ~2.443793 milliwatts |
