Resistance Converter: Convert Between Ohms, Kiloohms, Megaohms, and More

Introduction

Electrical resistance determines how much a material opposes current flow. Our resistance converter handles all common units.

Conversion Formulas and Factors

The ohm is the SI derived unit:

1 kO = 1000 O 1 MO = 1,000,000 O 1 GO = 1,000,000,000 O 1 mO = 0.001 O

Ohm's Law: R = V / I

For power: R = V� / P or R = P / I�

How to Use the Converter

Our resistance converter supports all standard units. For example, 10 kO = 10,000 O.

Real-World Examples

Electronics: A 4.7 kO resistor = 4700 O. Load Analysis: A 240 O load at 120 V draws 0.5 A. Insulation: Cable insulation should measure over 1 MO.

Common Applications

• Circuit Design: Selecting resistors for dividers and current limiting
• Troubleshooting: Measuring and verifying resistance values
• Electrical Safety: Testing insulation and ground continuity
• Sensors: RTDs and thermistors change resistance with temperature

Tips for Accurate Conversions

1. 1. Use resistor color codes to identify values
2. 2. Combine series resistances by adding; parallel by reciprocal sum
3. 3. Wire resistance increases with length and decreases with thickness

Conclusion

Resistance conversions are fundamental in electronics, circuit design, and safety. Our resistance converter provides instant conversions. For more tools, see the complete guide to unit converters.