Remodel Budget Calculator: Plan the Whole Job, Surprises Included
Remodel budgets rarely fail on the big items. The kitchen gets priced, the bathroom gets priced, and then the job grows teeth: the subfloor is rotten, the wiring predates modern code, and the wall you opened is holding up more than anyone expected. This calculator plans for that from the start. The four most-remodelled rooms come pre-filled with typical mid-range costs — $60,500 altogether — and a proper contingency is added on top, bringing the sample budget to $69,575. Replace the defaults with your own quotes and the totals follow.
Tick the rooms you are actually renovating, edit any cost to match a quote or an allowance, and set the contingency to suit the age of the house and the depth of the work. The “Other rooms / custom work” line is always included — use it for hallways, a utility room, exterior work, or anything that does not fit the four rooms above.
How this calculator works
The maths is deliberately plain. The calculator adds up every ticked room, plus the custom-work line, to give a subtotal. It then works out the contingency as a percentage of that subtotal and adds it on top to give the total budget — the number you should actually plan to have available, not just the number the quotes add up to.
The contingency sits on its own line for a reason. Padding every room “just in case” hides the reserve inside a dozen guesses, and it quietly gets spent on upgrades. A single visible contingency line keeps the reserve honest: it is there for what you cannot see yet, and whatever is left at the end is a genuine saving, not a rounding error.
Remodel Budget Calculator
Tick the rooms you are renovating, adjust each cost to match your quotes, then set a contingency for the surprises. The budget updates as you type, or press Calculate.
Enter your room costs to see the budget.
The contingency is worked out on the subtotal of the rooms you have ticked, plus any custom work. It is a reserve for surprises, not a budget for upgrades.
Typical 2026 ranges
These are rough US ballparks for 2026, for a full room remodel with mid-range finishes. They vary widely by region, by the age of the property and by finish level — a metro labour market can add a third, and high-end finishes can double a room on their own. Use them to sanity-check quotes, not to replace them.
| Room | Typical 2026 range |
|---|---|
| Kitchen | $15,000–$75,000+ |
| Bathroom | $10,000–$30,000 |
| Bedroom | $5,000–$15,000 |
| Living room | $5,000–$15,000 |
Kitchens carry the widest range because they carry the most trades and the most expensive single item — cabinets. A mid-range kitchen most often lands between $25,000 and $50,000; the same room with a wall down, moved plumbing and stone worktops is where the $75,000-plus figures live. Bathrooms are smaller but dense: waterproofing, tiling and plumbing packed into a few square metres, which is why their cost per square foot runs higher than any other room's.
The contingency rule
Size the contingency to the risk, not to a habit. For cosmetic work in a newer home — paint, flooring, fixtures, nothing structural and nothing opened up — 10% is usually enough, because there is very little that can be hiding. For most full remodels, 15% is the sensible default this calculator starts with. For older homes, or anything that touches structure, plumbing runs or wiring, use 20%: the older the building, the more of its history is sealed inside it.
The surprises are always behind walls. Rotten joists under a bathroom floor, a waste pipe that crumbles when touched, wiring that made sense in 1960, plaster that comes away with the wallpaper — none of it appears on any quote, because nobody can see it until the room is open. Contingency is not pessimism; it is the part of the budget that pays for reality. If you do not need it, the job simply comes in under budget, which is the best surprise a remodel can offer.
Where budgets blow up
Three things account for most overruns. First, moving plumbing or walls: a sink that stays where it is costs a fitting, while a sink that moves three feet costs pipework, drainage falls, making good and possibly a building inspection — and taking out a load-bearing wall adds steel and structural sign-off. Second, upgrade creep: the tap chosen in a showroom at twice the allowance, then the tiles that have to match it, then the worktop that makes both look cheap. Every individual upgrade looks small; together they eat the contingency that was meant for surprises.
Third, living elsewhere during the work. A kitchen-less month of takeaways, or a short let while bathrooms are out of action, is a real project cost that almost never appears in the budget — allow for it on the custom-work line. Underneath all three sits the biggest line of all: labour, typically 40–50% of a remodel. That is why DIY saves less than people expect on complex rooms, and why the cheapest quote is often just the one that has quietly left the labour out.
What to calculate next
Once the overall budget stands up, test its parts. The cost per square foot of each quote tells you whether a room is priced fairly for its size; the repair-or-replace check stops good money going into an appliance or a roof that should be retired instead; and the flooring calculator prices the one finish that runs through nearly every room.
Frequently asked questions
How much should I budget for a kitchen remodel?
For a mid-range kitchen remodel in 2026, $25,000–$50,000 is typical. A straightforward refresh — keeping the layout, refacing or replacing cabinets with standard units, laminate or butcher-block worktops — can start from around $15,000, while high-end work with moved services, custom cabinets and stone runs to $75,000 and beyond. Cabinets are usually the largest single line, so their specification drives the total more than any other choice.
How much contingency do I need?
Between 10% and 20% of the subtotal, depending on the age of the house and the depth of the work. Use 10% for cosmetic work in a newer home, where nothing is being opened up. Use 15% — the default in this calculator — for a typical full remodel. Use 20% for older homes or anything structural, because the surprises in an old house are bigger, older and more likely to involve plumbing, wiring or rot.
What costs the most in a remodel?
In a kitchen, cabinets and labour: cabinets are the largest single purchase, and labour across all trades typically runs to 40–50% of the whole job. After that, anything that moves plumbing, waste pipes, walls or electrics costs the most per change, because it drags several trades, inspections and making-good behind it. Finishes you choose late — stone, specialist tiling, high-end appliances — are the other big driver, which is why allowances for them should be set before work starts, not in the showroom.
Is it cheaper to remodel room by room?
Usually not per room. Each separate project repeats the fixed costs — contractor setup, trade minimum charges, deliveries, permits and making good around the new work — so four separate remodels almost always cost more in total than one combined job. What room-by-room does buy you is spread: the cost and the disruption are spread over months or years, you keep most of the house liveable throughout, and lessons from the first room improve the brief for the next. Many households decide that trade is worth it.
Estimates only — get at least three quotes; this budget is your comparison baseline.