Zeptoohm is 1e-21 ohm units.
Zeptoohms to Centiohms Converter — zOhm to cOhm
Convert Zeptoohm (zOhm) to Centiohm (cOhm) using the exact conversion factor (1 zeptoohm = 1e-19 centiohm). See the formula, worked examples, and conversion table.
Zeptoohms to Centiohms converter
Converter
Electricity Converter
Convert electrical units by family and calculate voltage, current, resistance, power, and energy with context values.
Context values
Some unit families need one extra value for a physically accurate result.
Centiohm is 0.01 ohm units.
Result = input x 1e-21 / 0.01.
Electrical units in the same family convert directly.
Reserved above the conversion cards and below the converter.
About Converting Zeptoohms to Centiohms
Zeptoohm and Centiohm both belong to the electricity family — voltage, current, resistance, power, or energy — units that show up constantly when working across the different standards used by household wiring (120V/240V depending on region), automotive electrical systems (12V/24V), and electronics design. Specifically: Zeptoohm is 1e-21 ohm units, and centiohm is 0.01 ohm units.
Formula
centiohms = zeptoohms × 1e-19
This factor comes from each unit's defined relationship to the category's base unit: 1 zeptoohm equals 1e-21 base units, and 1 centiohm equals 0.01 base units, so dividing one by the other gives the direct zeptoohm-to-centiohm factor of 1e-19.
Simple example
1 zOhm × 1e-19 = 1e-19 cOhm
1 zeptoohm = 1e-19 centiohms.
Real-world example
120 zOhm × 1e-19 = 1.2e-17 cOhm
120 zeptoohms = 1.2e-17 centiohms.
Conversion table
| Zeptoohm (zOhm) | Centiohm (cOhm) |
|---|---|
| 1 zOhm | 1e-19 cOhm |
| 5 zOhm | 5e-19 cOhm |
| 12 zOhm | 1.2e-18 cOhm |
| 24 zOhm | 2.4e-18 cOhm |
| 120 zOhm | 1.2e-17 cOhm |
| 240 zOhm | 2.4e-17 cOhm |
Reverse conversion: Centiohm to Zeptoohm
1e-19 cOhm × 1e+19 = 1 zOhm
1e-19 centiohms = 1 zeptoohm.
zeptoohms = centiohms × 1e+19
For a page dedicated to this direction, see Centiohm to Zeptoohm.
Understanding the Zeptoohm (zOhm)
Zeptoohm is 1e-21 ohm units.
Understanding the Centiohm (cOhm)
Centiohm is 0.01 ohm units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many centiohms are in 1 zeptoohm?
1 zeptoohm equals 1e-19 centiohms, using the exact defined conversion factor rather than an estimate.
How do I convert zeptoohm to centiohm?
Multiply the zeptoohm value by 1e-19. The converter above does this instantly to whatever precision you set.
How do I convert centiohm back to zeptoohm?
Use the reverse factor: 1 centiohm equals 1e+19 zeptoohms. You can also use the swap control in the converter above to flip the direction instantly.
What is a zeptoohm?
Zeptoohm (zOhm) is a unit of electricity.
What is a centiohm?
Centiohm (cOhm) is a unit of electricity.
Is the zeptoohm to centiohm conversion exact?
Yes. Both zeptoohm and centiohm are defined by fixed standards rather than physical artifacts, so the factor of 1e-19 used above is exact to as many digits as you choose to display.
What's the difference between voltage, current, and resistance?
Voltage (volts) is the electrical potential difference driving current through a circuit. Current (amperes) is the rate of flow of electric charge. Resistance (ohms) is how much a component opposes that flow. They're related by Ohm's law (V = I × R), but they are distinct physical quantities, and this page converts between units of just one of them.