Calculators
Free condo calculators
Model mortgage, HOA, tax, insurance, and assessment risk with your own inputs—not live databases. Each tool includes guidance on what documents to verify before you offer.
Last updated: July 2026
Start with the condo cost estimator, condo expenses calculator, or condo fee calculator. For insurance, use the condo insurance calculator. Compare naming in our condo fee vs HOA fee guide.
Pair calculators with our document checklist and condo comparison guide. Read methodology for what is estimated versus user-entered.
Choose your starting point
Each path is a different buyer moment — not a full directory of every page on the site.
All-in monthly payment
You want mortgage + HOA + tax + insurance in one line.
Enter HOA from the resale certificate — not the MLS remark from last spring.
HOA increase stress test
You are comparing buildings where one has lower dues today.
Model +15% dues and a one-time $8K assessment on the cheaper building before you decide.
Insurance and tax lines
You have a rate quote and need monthly tax from county tools.
Reassessment at sale can move tax more than a 0.25% rate change on the same purchase price.
Most-used tools
24 calculators
- Condo CalculatorMonthly mortgage, HOA fees, taxes, and insuranceRead more →
- Rent vs BuyCompare ownership vs renting over timeRead more →
- Condo ExpensesFree condo expenses calculator: estimate monthly mortgage, HOA, taxes, insurance, PMI, utilities, and assessment buffer. No signup required.Read more →
- HOA FeeFree HOA fee calculator and condo fee calculator: calculate how association dues affect total monthly payment and stress-test 10% or 20% fee increases. No signup.Read more →
- Condo AffordabilityFind out how much condo you can afford based on income, debts, and total housing payment.Read more →
- Condo Debt-to-IncomeFree debt-to-income calculator for condo buyers: front-end and back-end DTI with HOA, taxes, insurance, and PMI included. See how association dues affect qualification.Read more →
- Special AssessmentEstimate the monthly or lump-sum cost of a condo special assessment.Read more →
- Condo Closing CostEstimate buyer closing costs for a condo purchase including fees, prepaids, and reserves.Read more →
- Condominium MortgageFree condominium mortgage calculator: combine principal, interest, and HOA into one monthly payment. Compare buildings on PI plus association dues.Read more →
- Condo InsuranceFree condo insurance calculator and cost estimator: enter your HO-6 quote to see monthly premium impact on total housing cost. No signup required.Read more →
- Condo Property TaxFree condo property tax calculator: convert assessed value and local rate into a monthly tax line. Budget on post-purchase reassessment, not the seller's bill.Read more →
- Condo Investment ReturnEstimate potential return on a condo investment including rent, expenses, and appreciation.Read more →
- Condo Cash FlowCalculate monthly cash flow for a condo rental after mortgage, HOA, taxes, and insurance.Read more →
- Condo Refinance SavingsCompare your current mortgage payment to a refinanced rate and estimate break-even time.Read more →
- ARM vs Fixed RateCompare adjustable-rate and fixed-rate mortgage payments for a condo purchase.Read more →
- HOA Reserve FundFree HOA reserve fund calculator: estimate special assessment exposure from reserve study percent funded and planned capital projects.Read more →
- Condo AppreciationProject condo value growth and equity buildup over your planned ownership period.Read more →
- Condo Down PaymentCalculate down payment amounts and remaining loan balance for a condo purchase.Read more →
- PMI RemovalEstimate when you can drop private mortgage insurance based on equity and payments.Read more →
- Cost of Waiting to BuyCompare buying now versus waiting based on price changes, rent, and rates.Read more →
- Condo vs House CostCompare total monthly cost of owning a condo versus a single-family home.Read more →
- Rent vs Buy BreakevenFind how many years until buying a condo costs less than renting.Read more →
- Dwelling CoverageFree dwelling coverage calculator: estimate condo replacement cost for HO-6 from square footage and rebuild cost per foot—not purchase price.Read more →
- Loss AssessmentFree loss assessment calculator for condos: estimate your share of a master policy deductible and compare it to HO-6 loss assessment coverage limits.Read more →
Related guides
Learn the basics before you run the numbers
- HOA FeesWhat condo HOA fees cover, typical costs, and how to evaluate dues before you buy.
- Average Condo HOA FeesAverage condo HOA fees explained: typical monthly ranges by building type, what dues cover, and how to verify fees before you buy—not just a national average.
- Condo HOA FeesWhat condo HOA fees are, how they differ from mortgage and tax, typical ranges, and how to verify dues with the free HOA fee calculator before you buy.