Linear Charge Density Converter

How to Use

1. 1Type a linear charge density value in the input field (e.g. 1, 0.5, or 3.2e-6)
2. 2Select your starting unit from the From dropdown - choose from SI / Metric, Imperial / US, or CGS
3. 3Select your target unit from the To dropdown - the result appears instantly
4. 4All 24 conversions appear simultaneously, grouped by unit system
5. 5The SI / Metric group spans the full width and shows all 14 metric units in two columns
6. 6Hover any result row to reveal the copy (📋) and use-as-input (⇅) buttons
7. 7Click the copy icon to copy a value to your clipboard
8. 8Click ⇅ on any row to use that unit and value as the new input for instant reverse conversion
9. 9Use the ⇄ button between From and To to swap both units while updating the value
10. 10Adjust 'Sig. figures' to control result precision (3 to 12 significant digits)
11. 11Toggle 'Sci notation' for very small values such as statC/cm from μC/m input, or very large values in pC/cm
12. 12Collapse a group by clicking its header to reduce clutter when you only need one unit system
13. 13Open 'Common conversions & reference values' at the bottom for key equivalences and real-world charge density values

Features

• 24 linear charge density units across 3 unit systems
• SI / Metric (14 units): C/m, kC/m, mC/m, μC/m, nC/m, pC/m, C/cm, C/mm, C/km, μC/cm, μC/mm, nC/cm, nC/mm, pC/cm
• Imperial / US (6 units): C/in, C/ft, C/yd, mC/ft, μC/in, μC/ft
• CGS EMU (3 units): abC/m, abC/cm, abC/in - based on 1 abcoulomb = 10 C (exact)
• CGS ESU / Gaussian (1 unit): statC/cm - based on 1 statcoulomb ≈ 3.3356 × 10⁻¹⁰ C
• Includes μC/m - the most common practical unit for electrostatics problems
• Includes nC/m - standard unit for HV transmission line corona and coaxial cable analysis
• Includes statC/cm - the natural unit for Gaussian CGS electrostatics (Jackson-style textbooks)
• All 24 conversions shown simultaneously - no need to select a single target unit
• SI group displayed full-width in two columns for easy scanning
• Click any result row to use it as the new input for instant reverse conversion
• Adjustable significant figures: 3, 4, 5, 6, 8, 10, or 12 digits
• Toggleable scientific notation - essential for CGS units spanning many orders of magnitude
• Collapsible unit-system groups to reduce visual clutter
• One-click copy to clipboard for any converted value
• Quick-reference table with 12 entries including typical wire, cable, and corona discharge values
• Exact factors: 1 inch = 0.0254 m (exact), 1 abC = 10 C (exact), 1 statC ≈ 3.3356 × 10⁻¹⁰ C (CODATA)
• Default: 1 μC/m → nC/m (most common textbook unit-step conversion)
• 100% browser-based - no server, no data upload

Frequently Asked Questions