Free Commercial Real Estate Calculators
Good deals start with good numbers. These calculators give you quick, reliable estimates for the metrics that matter most in commercial real estate — cap rate, mortgage payments, space planning, and investment returns. Run the numbers, then call me when you are ready to move.
Cap Rate Calculator
Calculate capitalization rate from NOI and property price — or reverse it to estimate property value from a target cap rate. Essential for evaluating any income-producing commercial property.
Open Calculator →$Commercial Mortgage Calculator
Estimate monthly payments, total interest, and total cost for commercial loans. Compare different term lengths side-by-side to find the best financing structure.
Open Calculator →ft²Office Space Calculator
Estimate how much square footage your business needs based on headcount, workspace style, and amenities. Includes Tampa Bay average lease rate estimates.
Open Calculator →↑Commercial Property ROI Calculator
Analyze cash-on-cash return, cap rate, annual cash flow, and projected 5-year and 10-year total returns on a commercial investment property.
Open Calculator →Why CRE Math Matters Before You Commit
Commercial real estate decisions involve larger sums, longer timelines, and more complex financing than residential. A miscalculation on cap rate or debt service can mean the difference between a profitable investment and a cash-flow problem. These calculators give you institutional-grade analysis in seconds — the same metrics Barrett Henry uses when advising clients on acquisition decisions across Florida.
How These Tools Work Together
Start with the cap rate calculator to evaluate whether a property is priced fairly relative to its income. Then use the commercial mortgage calculator to model your debt service under different terms. Feed those numbers into the ROI calculator to see your cash-on-cash return and 5- and 10-year projections. If you are evaluating office space for your business, the office space calculator helps you right-size before you ever tour a building.
Commercial Real Estate FAQ
- What is a cap rate in commercial real estate?
- Cap rate is the ratio of a property's net operating income to its purchase price. It measures the unlevered yield — what you would earn if you paid all cash. Tampa Bay cap rates typically range from 5% to 8% depending on property type and location.
- How do you calculate commercial real estate ROI?
- Cash-on-cash return is the most practical ROI metric: annual cash flow after debt service divided by total cash invested (down payment plus closing costs). Multi-year ROI adds appreciation and principal paydown to the calculation.
- How much office space does my business need?
- Plan for 100-150 square feet per person for open-plan offices, 150-200 for hybrid, and 200-300 for private office environments. Add 20-30% for shared amenities, and factor in where your headcount will be at the end of your lease term.
Related Guides and Resources
- What Is a Cap Rate? (Full Guide) →
- How to Value Commercial Property →
- Leasing vs. Buying Commercial Space →
- How to Calculate Commercial Property ROI →
- What Makes a Good Commercial Investment →
- Understanding CAM Charges: Tenant's Guide →
- Commercial Due Diligence Timeline →
- Investment Sales Services →
- Tenant Representation Services →
- Hillsborough County CRE Market →
Last updated: July 2026
Need Help Interpreting the Numbers?
Calculators give you a starting point — context is what closes deals. Let me walk you through what these numbers mean for your specific situation.