How are the calculators organized?

Calculators are grouped into four categories: Mortgage & Home Buying, Property, Construction, and Home Improvement. You can browse by category, search by keyword, or sort the full list alphabetically.

Do I need to know which category a calculator is in?

No. The search box matches calculator names, descriptions and common keywords, so typing something like "tax" or "gravel" finds the right tool without knowing the category first.

Are the calculators kept up to date?

The calculators use formulas and rules — such as amortization math or unit conversions — that do not change over time. Where a calculator references program rules, such as PMI cancellation thresholds, it reflects current federal guidance.

Home & Property Calculators

Explore free calculators for mortgages, home buying, property taxes, construction materials, and home improvement projects. Search or filter by category — every tool works in your browser, with no account required.

Four categories, four kinds of question

The calculators below fall into four groups. Each answers a different stage of owning or improving a property, so it helps to know which one you're in before you start typing numbers.

Real Estate & Mortgage: Financing a purchase — monthly payments, affordability, down payment size, closing costs and refinancing.
Property & Ownership: Ongoing ownership costs once you have a property — property tax above all.
Construction Materials: Turning measurements into order quantities — concrete, gravel, flooring and paint.
Home Improvement: Planning a renovation budget and the finish-work materials that go with it.

22 calculators

Browse by

Real Estate & Mortgage

About real estate & mortgage

Mortgage payments, affordability, closing costs, refinancing and buy-versus-rent comparisons.

Mortgage Calculator

Real Estate & Mortgage · Mortgage

Estimate the monthly principal, interest, tax, insurance, PMI and HOA cost of a home loan.

Calculate

Home Affordability Calculator

Real Estate & Mortgage · Home Affordability

Estimate the home price your income, debts and down payment could support using DTI limits.

Calculate

Rent vs Buy Calculator

Real Estate & Mortgage · Rent vs Buy

Compare the total cost of renting and buying over time, including equity and opportunity cost.

Calculate

Closing Cost Calculator

Real Estate & Mortgage · Closing Costs

Estimate closing costs and the total cash you need at the closing table.

Calculate

Down Payment Calculator

Real Estate & Mortgage · Down Payment

See the down payment, loan amount and loan-to-value for any percentage down.

Calculate

Refinance Calculator

Real Estate & Mortgage · Refinance

Compare your current loan with a new one and estimate monthly savings and break-even point.

Calculate

Construction Materials

About construction materials

Volume, area and quantity estimates for concrete, gravel, flooring, paint and other materials.

Gravel Calculator

Construction Materials · Gravel

Estimate gravel volume in cubic yards and weight in tons for driveways, paths and beds.

Calculate

Concrete Calculator

Construction Materials · Concrete

Calculate concrete volume for slabs, footings, sidewalks, patios and post holes.

Calculate

Flooring Calculator

Construction Materials · Flooring

Work out square footage and how many boxes of flooring to order, including waste.

Calculate

Paint Calculator

Construction Materials · Paint

Estimate paintable wall area and how many gallons of paint your project needs.

Calculate

Roof Truss Geometry Calculator

Construction Materials · Framing

Rise, roof angle, sloping lengths with overhang and a preliminary truss count from span, pitch and spacing.

Calculate

Asphalt Driveway Cost Planner

Construction Materials · Driveways

Itemized asphalt installation or resurfacing budget from your own quoted price per square foot.

Calculate

Driveway Sealing Calculator

Construction Materials · Driveways

Gallons and containers of sealer from your product's label coverage, coats and container size.

Calculate

Home Improvement

About home improvement

Renovation budgets, finishes and project planning estimates.

Home Renovation Cost Calculator

Home Improvement · Renovation Cost

Build a transparent renovation budget from your own material, labor and contingency inputs.

Calculate

Roofing Calculator

Home Improvement · Roofing

Roof area, squares, shingle bundles and material cost, adjusted for the roof pitch.

Calculate

Mulch & Topsoil Calculator

Home Improvement · Landscaping

Bulk volume, bag counts and delivered cost for mulch, topsoil and garden beds.

Calculate

Mini-Split BTU Estimator

Home Improvement · HVAC

Preliminary single-room cooling BTU/h estimate using the ENERGY STAR sizing chart and its published adjustments.

Calculate

Room-by-Room CFM Planner

Home Improvement · HVAC

Per-room and total airflow from air changes per hour, or cooling supply CFM from sensible loads, with a printable schedule.

Calculate

Generator Wattage Planner

Home Improvement · Generators

Running load, starting-load scenarios and essential-only totals from your appliance nameplate watts.

Calculate

Property & Ownership

About property & ownership

Property taxes, ownership costs and long-term property expenses.

Property Tax Calculator

Property & Ownership · Property Tax

Calculate annual and monthly property tax from an assessed value, tax rate and exemptions.

Calculate

Rental Yield Calculator

Property & Ownership · Rental Yield

Gross and net rental yield, cap rate, monthly cash flow and cash-on-cash return.

Calculate

Home Equity Calculator

Property & Ownership · Home Value

Current equity, loan-to-value and how much you could borrow against your home.

Calculate

Frequently asked questions

How are the calculators organized?: Calculators are grouped into four categories: Mortgage & Home Buying, Property, Construction, and Home Improvement. You can browse by category, search by keyword, or sort the full list alphabetically.
Do I need to know which category a calculator is in?: No. The search box matches calculator names, descriptions and common keywords, so typing something like "tax" or "gravel" finds the right tool without knowing the category first.
Are the calculators kept up to date?: The calculators use formulas and rules — such as amortization math or unit conversions — that do not change over time. Where a calculator references program rules, such as PMI cancellation thresholds, it reflects current federal guidance.