Free tools from Michael “Wiz” Wisniewski
Real Estate Calculators for South Florida
Plan your next move with free, browser-only calculators built for buyers, sellers, and investors from the Treasure Coast to South Florida. Estimate mortgages, closing costs, home equity, taxes, and rental returns. Every number updates as you type, and nothing you enter ever leaves your device.
Last updated: September 2026
Calculate your next move as a buyer or seller
Mortgage Calculator
Estimate your full monthly payment: principal, interest, property tax, insurance, and HOA.
Use calculatorFlorida Closing Cost Estimator
Estimate what you will actually pay at closing: doc stamps, title, lender fees, and prepaids.
Use calculatorRent vs Buy Calculator
Compare the long-term cost of renting versus buying in South Florida, year by year.
Use calculatorHome Equity Calculator
See your equity, loan-to-value, and what a sale could net you after costs.
Use calculatorProperty Tax Savings Calculator
Estimate annual property tax by Florida county, with homestead savings built in.
Use calculatorThinking about your home’s worth?
Get a free, no-obligation valuation from a real agent who knows the Treasure Coast to South Florida market, not from an algorithm.
Get a free home valuationUnderwrite a rental, apartment building, or commercial deal
Wiz has lived every side of investing, from fix-and-flip and land development to building homes and running rentals. These tools put the same numbers in front of you, tuned for the Treasure Coast to South Florida market, so you can underwrite with confidence and bring a real deal to a strategy call.
ROI Calculator
Total and annualized return on your cash, from cash flow and the sale.
Use calculatorIRR Calculator
The honest annualized rate that lets you compare one deal to the next.
Use calculatorAPOD
Annual Property Operating Data: the one-page income statement lenders run on a rental.
Use calculatorNOI Calculator
Net operating income and cap rate, before you ever touch the loan.
Use calculatorGross Income Calculator
Potential and effective gross income for a multi-unit building, plus the GRM.
Use calculatorRental Profit & Loss Calculator
Your month-by-month bottom line as a landlord, mortgage included.
Use calculatorAdvanced investor calculators
Cap Rate Calculator
The quick screen every investor compares: net operating income over price.
Use calculatorDSCR Calculator
Can the property carry the loan? Measure your debt service coverage ratio.
Use calculator1031 Exchange Tax Savings Calculator
Estimate the capital gains and depreciation tax a 1031 exchange can defer.
Use calculatorHow should you use these calculators?
Every calculator on this page runs entirely in your browser. There is no backend, no account, and no tracking: your numbers are computed on your device and never transmitted, saved, or shared. Refresh the page and they are gone.
The defaults and guidance are tailored to the Florida market, from doc stamps and intangible tax on the closing side to Florida property tax and insurance realities on the investing side. Treat these as a planning first draft. For the real quote on your situation, Wiz pairs them with current lender, tax, and insurance numbers.
Fair Housing and honest numbers
Michael “Wiz” Wisniewski and The Complete Real Estate Team are committed to equal professional service to every person, regardless of race, color, religion, sex, disability, familial status, or national origin, in accordance with the Fair Housing Act. The numbers on this page are estimates, honestly presented, so you can plan with confidence and without surprises.
Run the numbers, then run them past Wiz
Call (561) 441-8420 or book a free 15-minute strategy call to turn any estimate into a plan.
Michael “Wiz” Wisniewski | The Complete Real Estate Team | Dalton Wade Real Estate