Only $39 One-Time • A free spreadsheet won’t catch an unsafe inverter draw. Our built-in safety-buffer logic does.

The DIY Van Conversion Spreadsheet & Electrical Calculator That Keeps Your Build Safe and On Budget

Answer 3 questions, generate your custom 9-sheet Van Build Tracker, and stop guessing at wire gauge, battery sizing, and budget overruns.

$49$39one-time payment

Build My Van Tracker Now →Try a Free Calculator First

30-day money-back guarantee · Instant download

Built for People Actually Converting a Van \u2014 Not Watching Videos About It

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Electrical Safety Calculator

Auto-sizes wire gauge, fuses, and inverter draw so you don’t melt a 10-AWG wire guessing at loads.

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Automated Budget Tracker

Every line item rolls up into a live total — know the moment you go over budget, not after checkout.

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Vehicle Weight & Payload Monitor

Track GVWR/payload as you build so your finished van is legal and safe to drive, not just pretty.

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Sprinter, Transit & ProMaster Ready

Pre-built templates matched to your van’s interior dimensions and electrical baseline.

Free tools give you numbers. This gives you a plan.

Stop Guessing. Build It Right.

The 9-sheet van conversion spreadsheet with a built-in electrical safety calculator, budget tracker, and weight monitor.

$49$39one-time · instant download

Get the Tracker — $39 One-Time

30-day money-back guarantee · Works in Excel & Google Sheets

Free Van Build Guides & Calculators

Not ready to buy? Start with our free tools and long-tail guides covering the exact questions van builders search for.

How Many Watts of Solar Do You Need for a Sprinter Van? →How to Size a Battery Bank for Van Life →Realistic Van Build Budget: What Builds Actually Cost →Van Electrical Wire Gauge Guide (With Chart) →Best Van Insulation: R-Value Comparison Guide →How to Size a Fresh Water Tank for Van Life →

Frequently Asked Questions

Is this a one-time payment or a subscription?

One-time payment of $39. No subscription, no recurring fees. You own the file forever and can reuse it for future builds.

Does it work in Google Sheets or only Excel?

Both. The Van Build Tracker is fully compatible with Google Sheets and Microsoft Excel, so you can edit it on any device.

Will it work for my specific van (Sprinter, Transit, ProMaster)?

Yes. The electrical and weight calculators are pre-configured with baseline specs for Sprinter, Transit, and ProMaster vans, and every number is editable if your van differs.

What if it doesn’t work for my build?

You’re covered by a 30-day money-back guarantee — if it doesn’t save you time and guesswork, we’ll refund you, no questions asked.