Free Financial
Calculators. Instant Results.
Mortgage, auto, investment, debt, and 85+ more tools — calculate anything in seconds. Private, accurate, always free.
No signup needed. Just pick a calculator and go.
Explore 85+ Financial Tools
From mortgage planning to unit conversion — find the right calculator for any financial question.
Mortgage
7Payment · Refinance · Amortization
Auto & Vehicle
7Auto Loan · Lease vs Buy · Fuel Cost
Savings & Investment
11401k · Compound Interest · Retirement
Debt & Loans
7Debt Payoff · Credit Card · Student Loan
Tax & Business
13Income Tax · ROI · Profit Margin
Unit Converters
20Currency · Length · Temperature
Health & Fitness
6BMI · Calorie · Body Fat
Engineering
14Construction · Electrical · Physics
How It Works
Three steps to financial clarity. No signup, no friction.
Choose a Calculator
Browse 85+ tools by category or search for exactly what you need.
Enter Your Numbers
Fill in your details — loan amount, income, savings goal, or any metric.
Get Instant Results
See results immediately. Save, share, or compare scenarios — all for free.
Want to save your history? Join the Premium waitlist
Small Changes, Massive Results
Real scenarios showing how small financial adjustments compound into life-changing outcomes.
Trending Financial Calculators
Built for Real Financial Decisions
No fluff, no gimmicks — just accurate tools that respect your time and privacy.
Runs in Your Browser
Every calculation happens locally on your device. Nothing is sent to a server — your financial data never leaves your browser.
No Account Needed
Just open a calculator and start. No signup, no email, no password. Save time and get straight to results.
Free Forever
All 85+ calculators are free with no usage limits. No trial period, no hidden fees, no paywalls on basic tools.
Industry-Standard Formulas
We use the same amortization, compound interest, and present value formulas that banks and financial advisors rely on.
Works on Any Device
Fully responsive design. Use the same calculators on your phone, tablet, or desktop — no app download needed.
Instant Results
Results update as you type. No loading spinners, no page reloads. Change a number and see the impact immediately.
Frequently Asked Questions
Everything you need to know about Numeraty.
Are Numeraty calculators really free? add
Yes, all 85+ calculators are completely free to use with no signup required. You can calculate mortgage payments, retirement projections, debt payoff plans, and more — unlimited times. A Premium tier with advanced features like saving history and exports is coming soon.
How accurate are the calculations? add
Our calculators use the same industry-standard financial formulas that banks and financial advisors rely on. Mortgage calculations use the standard amortization formula, investment projections use compound interest formulas, and results are consistent with professional financial software. All calculations happen in real time so you can verify inputs and outputs instantly.
Is my financial data safe and private? add
Absolutely. Your calculations run entirely in your browser — no data is sent to our servers. We don't collect, store, or share any of the numbers you enter. There are no tracking cookies on calculator pages, and no account is needed to use any tool.
How do I calculate my monthly mortgage payment? add
Use our Mortgage Payment Calculator: enter your loan amount, interest rate, and loan term. The calculator instantly shows your monthly payment, total interest paid, and a full amortization schedule. You can also factor in property tax, insurance, and PMI for a complete picture.
Can I save and compare multiple calculations? add
Free users can view their 5 most recent calculations. We're building a Premium tier that will include unlimited calculation history, the ability to save and name scenarios, side-by-side comparison tools, and exports to PDF and CSV. Join the waitlist to be notified when it launches.
What types of calculators does Numeraty offer? add
We offer 85+ tools across 8 categories: Mortgage & Real Estate (7 tools), Auto & Vehicle (7), Savings & Investment (11), Debt & Loans (5), Tax & Business (13), Unit Converters (20+), Health & Fitness (4), and Engineering & Science (12+). New calculators are added regularly.
Do I need to create an account? add
No account is needed for any calculator. Just open the tool, enter your numbers, and get instant results. Creating a free account lets you save your recent calculations. A Premium tier with history, exports, and advanced features is coming soon — join the waitlist to get early access.