Van Conversion Cost Calculator
Estimate the full cost of your campervan conversion, including van purchase, materials, tools, services and contingency, with low–likely–high ranges.
Should I include tools if I will reuse them later?
Yes, if you are trying to see the **true cost** of this build, include tools you buy specifically for it. If some tools will be reused for future projects, you can mentally treat part of that spend as an investment, but the calculator works best when it sees all cash leaving your account.
How big should my contingency percentage be?
It depends on scope and risk. For a simple DIY build with modest electrics, **10–15%** on top of materials + tools + services is often enough. For complex systems, custom work or a tight timeline, **15–25%** is safer. If you already know you tend to change your mind mid-build, go higher.
What does “build cost vs van price” actually tell me?
It shows how much of your total spend goes into the **conversion** compared to the **base van**. A low percentage usually means a more basic interior on a relatively expensive van. A very high percentage means you are putting a lot of value into the build — which can be great, but only if the base van is solid and you plan to keep it for a while.
Can I use this if I already started and have real expenses?
Yes. Replace the suggested numbers with your **actual spend so far**, plus realistic estimates for what is still ahead. The Low / Most likely / High band will help you see if you are on track or sliding into a more expensive build than planned.
Does this calculator include my own time or labour?
No. This tool focuses on **cash costs**: van, materials, tools, services and contingency. If you want to factor in your own labour value and compare DIY to paying a shop, use it together with a **DIY vs Pro Campervan Conversion Cost Calculator**.