This tool provides advanced mortgage calculations beyond simple payment estimates. It offers detailed breakdowns of loan costs, visual aids for understanding amortization and equity, and the ability to save and compare different loan scenarios for informed decision-making.
1.1.4
October 14, 2026
Now you can structure Refinance, Helocs, and HELOANS.
The Giant Calculator supports Conventional, FHA, VA, and Jumbo loans. It includes specific calculations for FHA's UFMIP and annual MIP, VA funding fees, and conventional PMI with life-of-loan logic.
The Giant Calculator is completely free to download and use, with no account required. There is no need for a trial period as all features are available without cost.
It provides a clear breakdown modeled on the official Loan Estimate format, estimating origination charges, services, prepaids, and escrows. It also calculates APR with high-precision math and includes a glossary for financial terms.
Yes, you can save multiple loan setups with custom names and compare them side by side. The app features best-value indicators to highlight the lowest-cost option among your saved scenarios.
The app includes a donut chart breaking down your monthly payment (P&I, taxes, insurance, PMI, HOA), a detailed amortization schedule, and an equity graph showing your balance paid down year by year.
The Giant Calculator is built for everyone, featuring full screen reader support and high-contrast labels. It also incorporates haptic feedback and smooth, responsive controls for an enhanced user experience.
The Giant Calculator was last updated on June 25, 2026, with version 1.1.1. Updates typically focus on refining calculations, adding new loan types, or improving user interface based on feedback.
No, The Giant Calculator is ad-free. The description explicitly states 'No accounts. No ads. Just clear, honest mortgage numbers.'
