Calculate, compare, understand, decide
Home Renovation Budget Calculator
Build an itemised renovation estimate with materials, labour, charges, tax and contingency, compare it with your budget and see which scope is still unpriced.
Smart result
Your estimate will appear here
Change any editable assumption, calculate, then review the steps, assumptions and limitations before deciding.
How this estimate works
Each work item is priced as quantity × (material + labour rate) plus other charges and any tax you enter. A contingency is added and the total is compared with your target budget. Items with a quantity but no rate, or a rate but no quantity, are flagged as missing scope.
Formula
- Item = (qty × (material + labour) + other) × (1 + tax %)
- Funding need = Σ items × (1 + contingency %)
- Variance = target budget − funding need
Limitations
- Material and labour prices are from your quotes, not verified by TechVodka.
- Unpriced scope is excluded from the total.
Data used
No material price dataset is deployed. All rates are your quotes.
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Frequently asked questions
How much contingency should I use?+
Older homes and wet areas often hide surprises, so many people use 10–20%. It is your choice and fully editable.
Can I enter a lump-sum quote?+
Yes. Put the amount in Other charges and leave quantity at 0.
How accurate is this renovation budget?+
It will provide an indicative estimate based on your inputs and the stated assumptions. Actual results can vary by location, equipment, tariff, and usage.
Can I use the result to make a purchase?+
Use it as a starting point, then confirm current prices, specifications, eligibility, and site requirements with a qualified provider.