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Electrical resistance converter for accurate electrical resistance unit conversions

This electrical resistance converter tool helps you perform accurate electrical resistance conversions between 30 units:

Common electrical resistance units explained

Learn more about these commonly used electrical resistance units:

All possible electrical resistance conversions

Below, we provide an overview of all the electrical resistance conversions available on this website to help you navigate and utilize our resources efficiently.

Unit Conversion
Ohms (Ω) Base unit
Volts per ampere (V/A) Volts per ampere to Ohms | Ohms to Volts per ampere
Reciprocal siemens (1/S) Reciprocal siemens to Ohms | Ohms to Reciprocal siemens
Abohms (abΩ) Abohms to Ohms | Ohms to Abohms
Statohms (statΩ) Statohms to Ohms | Ohms to Statohms
Quantized hall resistance (RH) Quantized hall resistance to Ohms | Ohms to Quantized hall resistance
Quettahms (QΩ) Quettahms to Ohms | Ohms to Quettahms
Ronnahms (RΩ) Ronnahms to Ohms | Ohms to Ronnahms
Yottahms (YΩ) Yottahms to Ohms | Ohms to Yottahms
Zettahms (ZΩ) Zettahms to Ohms | Ohms to Zettahms
Exahms (EΩ) Exahms to Ohms | Ohms to Exahms
Petahms (PΩ) Petahms to Ohms | Ohms to Petahms
Terahms (TΩ) Terahms to Ohms | Ohms to Terahms
Gigahms (GΩ) Gigahms to Ohms | Ohms to Gigahms
Megahms (MΩ) Megahms to Ohms | Ohms to Megahms
Kilohms (kΩ) Kilohms to Ohms | Ohms to Kilohms
Hectohms (hΩ) Hectohms to Ohms | Ohms to Hectohms
Decahms (daΩ) Decahms to Ohms | Ohms to Decahms
Deciohms (dΩ) Deciohms to Ohms | Ohms to Deciohms
Centiohms (cΩ) Centiohms to Ohms | Ohms to Centiohms
Milliohms (mΩ) Milliohms to Ohms | Ohms to Milliohms
Microohms (μΩ) Microohms to Ohms | Ohms to Microohms
Nanohms (nΩ) Nanohms to Ohms | Ohms to Nanohms
Picohms (pΩ) Picohms to Ohms | Ohms to Picohms
Femtohms (fΩ) Femtohms to Ohms | Ohms to Femtohms
Attohms (aΩ) Attohms to Ohms | Ohms to Attohms
Zeptohms (zΩ) Zeptohms to Ohms | Ohms to Zeptohms
Yoctohms (yΩ) Yoctohms to Ohms | Ohms to Yoctohms
Rutherfordiumohms (RΩ) Rutherfordiumohms to Ohms | Ohms to Rutherfordiumohms
Dubniumohms (DΩ) Dubniumohms to Ohms | Ohms to Dubniumohms

What is electrical resistance?

Electrical resistance measures how much a material or object opposes the flow of electric current. It determines how easily electricity can pass through a conductor. The higher the resistance, the harder it is for current to flow; the lower the resistance, the easier it is.

Resistance occurs because electrons, which carry electric current, collide with atoms inside a material as they move. These collisions slow down the flow of electrons and convert some electrical energy into heat. This is similar to how friction slows down a moving object and produces heat.

Base unit of electrical resistance

The most common unit used to measure electrical resistance is the ohm (Ω), which is part of the International System of Units (SI).

How is electrical resistance measured?

Electrical resistance is measured using an instrument called an ohmmeter, which applies a small voltage and measures the resulting current to calculate resistance. It can also be measured indirectly using Ohm’s Law if voltage and current are known.

Faqs

What factors affect electrical resistance?

Several factors affect the resistance of a material, including its length, thickness, temperature, and the type of material. For example, longer wires have more resistance, while thicker wires have less. Materials like copper and aluminum have low resistance and are good conductors, whereas materials like rubber have high resistance and are good insulators.

Why is electrical resistance important?

Electrical resistance is crucial in designing circuits, as it helps control current flow, prevent overheating, and protect sensitive components. It also plays a vital role in devices such as resistors, heaters, and sensors.

Can electrical resistance be negative?

In traditional conductive materials, resistance cannot be negative. However, in specialized electronic components like tunnel diodes or certain quantum systems, phenomena that mimic negative resistance can occur due to unique current-voltage behaviors.

What is the difference between resistance and impedance?

Resistance applies to direct current (DC) circuits and deals solely with opposition to current flow. Impedance, on the other hand, is used in alternating current (AC) circuits and includes both resistance and reactance, which accounts for capacitance and inductance effects.