About Wire Solved
Our Mission
Make 12V and 24V wiring safe and simple for everyone by providing clear guidance on choosing the right wire gauge for DC circuits.
Whether you’re installing a light bar on your truck, setting up solar panels in your van, or wiring accessories in your boat, Wire Solved helps you size wire correctly the first time.
Why Wire Solved Exists
Standard wire charts tell you what gauge handles a given amperage, but they don’t account for voltage drop over distance. This leads to dim lights, slow winches, and frustrated DIYers who followed the chart but still have problems.
Wire Solved calculates three critical values for every circuit:
- Wire Gauge - Sized for both ampacity AND voltage drop
- Fuse Size - Proper protection using the 125% rule for continuous loads
- Voltage Drop - Actual percentage so you know what to expect
Unlike simple charts, Wire Solved accounts for both current AND wire length to prevent voltage drop issues that charts miss.
How It Works
Wire Solved is a 100% client-side calculator. All calculations happen in your browser using JavaScript. We don’t send your data to a server, store it in a database, or track what you’re calculating.
Technical Approach:
- Static site built with Hugo
- Vanilla JavaScript (no frameworks, no dependencies)
- Calculations based on copper wire resistance tables and NEC ampacity ratings
- System Builder uses browser localStorage for your saved designs
- Feedback system is opt-in only (via Cloudflare Workers)
Privacy-Friendly:
- No cookies
- No external analytics or tracking scripts
- No server-side processing of calculations
- LocalStorage metrics stay on your device
Who Built This
Wire Solved was created by a software engineer and overlanding enthusiast who got tired of finding incomplete wire sizing information online. After manually calculating voltage drop for the tenth time, it became clear that others needed a better tool.
The calculator launched on Reddit’s r/overlanding community in January 2025 and received immediate feedback from DIYers and professional installers alike. User suggestions shaped the feature set, including metric wire gauges, 24V support, and the System Builder.
Our Approach
We believe in:
- Clear explanations over jargon - Technical accuracy without unnecessary complexity
- Conservative recommendations - Default to 5% voltage drop for reliable performance
- Educational content - Teach why wire sizing matters, not just what gauge to use
- Privacy first - Your projects are your business
- Free and accessible - No paywalls, no account required
What We’re Not
Wire Solved is an educational tool, not a replacement for professional electrical work. We provide calculations based on standard tables and formulas, but we cannot account for every installation scenario.
Always:
- Follow local electrical codes and regulations
- Consult a licensed electrician for complex installations
- Use proper crimping tools and techniques
- Install fuses at the power source
- Test your work before putting it into service
If you’re working with high currents (>100A), AC voltage, or structural electrical systems, hire a professional.
Roadmap
Wire Solved is actively developed based on user feedback. Recent additions include:
- ✅ Metric wire gauges (mm²) with AWG conversion
- ✅ 24V system support for RVs and marine applications
- ✅ System Builder for multi-circuit planning
- ✅ PDF export with shopping lists
- ✅ Visual wiring diagrams with SVG/PNG export
- ✅ Dark mode with theme toggle
- ✅ Keyboard shortcuts and quick actions
- ✅ Essential site pages (About, FAQ, Contact, Privacy, Terms)
Coming soon:
- Progressive Web App for offline use
- Additional wiring diagram features
- Accessibility improvements
Get Involved
We welcome your feedback and suggestions:
- Report bugs - Found something that doesn’t work? Let us know via the Contact page.
- Suggest features - Have an idea for improvement? We’re listening.
- Spread the word - Share Wire Solved with others who might find it useful.
Visit our Contact page to send feedback or report issues.
Technical Details
For those interested in the implementation:
- Hosting: Cloudflare Pages
- Technology: Hugo static site generator with vanilla JavaScript
- Wire data: Based on NEC Table 310.15(B)(16) for copper conductors
- Fuse sizing: Follows NEC 240.4(D) and 125% continuous load rule
- Privacy: No tracking, all calculations client-side, localStorage only
Disclaimer
Wire Solved provides educational information only. While we strive for accuracy, we make no guarantees about the suitability of our recommendations for your specific application.
You are responsible for:
- Verifying calculations are appropriate for your use case
- Following applicable electrical codes and standards
- Using proper installation techniques and materials
- Testing your work before putting it into service
Electrical work can be dangerous. If you’re unsure, consult a professional.
Last updated: January 6, 2025