Home calculators .

Home affordability

Find a home budget that fits your income, monthly expenses, and cash on hand.

Mortgage payment

See your real monthly payment, including taxes, insurance, HOA, and PMI.

PMI estimate

Estimate private mortgage insurance and see how down payment affects loan-to-value.

Closing costs

Plan the cash you need for a down payment, closing fees, prepaids, and reserves.

Rent vs buy

Compare home equity with the savings you could invest while renting.

Flooring

Measure your rooms, add a waste allowance, and estimate flooring and installation costs.

Paint

Estimate paint for your walls and ceilings, with doors and windows taken out.

Room area

Find the area of a rectangular room from your measurements.

Square footage

Calculate total square footage across identical spaces, in feet or feet and inches.

Drywall

Estimate wall and ceiling sheets with common sizes and a waste allowance.

Renovating

Renovation cost

Build a renovation budget with editable project scope, finish level, labor, and contingency.

Mortgage payoff

Estimate a payoff month and compare monthly, annual, and one-time extra principal payments.

Extra mortgage payments

Compare extra principal amounts and see how much time and interest they can save.

Pay extra or invest?

Compare earlier mortgage payoff with investing the same monthly cash budget.

Project materials

Concrete

Estimate slabs, footings, walls, columns, circular slabs, and post holes in bags or cubic yards.

Mulch

Estimate mulch volume, purchase quantities, and material costs from your area and depth.

Gravel

Estimate gravel volume, purchase quantities, and material costs from your area and depth.

Topsoil

Estimate topsoil volume, purchase quantities, and material costs from your area and depth.

Exterior projects

Roofing

Estimate pitched roof area, roofing squares, bundles, and underlayment.

Project geometry

Stairs

Explore stair risers, treads, run, angle, and stringer geometry.

Fence

Estimate fence posts, panels, pickets, rails, and post-hole concrete.

Renovating

Tile

Estimate tile counts, boxes, grout spacing, and a waste allowance for floors, walls, and backsplashes.

Deck materials

Estimate decking boards, joists, support posts, fasteners, and concrete.

Sod

Estimate lawn area, sod pieces, waste, and cost across multiple lawn sections.

Pavers

Estimate pavers, base gravel, bedding sand, and material costs for a patio or path.

Renovating

Wallpaper

Estimate whole wallpaper rolls using wall height, roll size, and pattern-repeat losses.

Exterior projects

Siding

Estimate exterior siding area, gables, whole packages, and material costs.

Insulation

Estimate insulation quantities, target thickness, cavity fit, and material cost.

HVAC / BTU

Explore approximate heating and cooling loads with clearly labeled rule-of-thumb assumptions.

Electricity cost

Estimate electricity consumption and monthly running costs from watts, usage, and your local rate.

Appliance energy cost

Estimate electricity consumption and monthly running costs from watts, usage, and your local rate.

Home equity

Estimate your equity, loan-to-value, and net equity after modeled selling costs.

Property tax

Estimate annual and monthly tax using assessed value, exemptions, and a combined local rate.