About These Calculators
Specialized housing calculators for today's challenging real estate market. Explore assumable mortgages, ADU costs, co-buying strategies, and more.
Housing & Real Estate Calculators
4 toolsAssumable Mortgage Savings Calculator
See how much you save by assuming a seller's low-rate mortgage vs getting a new loan
ADU Construction Cost Estimator
Estimate accessory dwelling unit construction costs, timeline, and potential rental ROI
Co-Buying Affordability Calculator
Calculate mortgage qualification, equity splits, and per-person costs when buying a home together
Squatter Rights Timeline by State
Look up adverse possession timelines and squatter eviction rules for your state
Frequently Asked Questions
Are these housing & real estate calculators free?
Yes, all 4 calculators are completely free with no signup required. They run entirely in your browser — no data is sent to any server.
How accurate are these calculators?
Our calculators use industry-standard formulas and are regularly updated. However, they provide estimates — always verify critical calculations with a professional in the relevant field.
Can I use these calculators on my phone?
Yes, all calculators are mobile-responsive and work on any device with a web browser. No app download needed.
Do you save my calculations?
No. All calculations happen in your browser. We don't store any of your inputs or results. Your data stays on your device.
Can I embed these calculators on my website?
Select calculators offer embed codes that you can copy and paste into your website or blog. Look for the "Embed This Calculator" section on individual tool pages.