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Six domains, one consistent experience. Everything runs instantly in your browser.
Salary Converter
Convert salary between hourly, daily, weekly, monthly, and annual pay periods.
Break-even Calculator
Find when your business will start making profit with break-even analysis.
Mortgage Calculator
Calculate home loan payments and amortization schedules.
Time Value of Money Calculator
Solve for any TVM variable: PV, FV, PMT, I/YR, or N for loans and investments.
Depreciation Calculator
Calculate asset depreciation for accounting or for US, Spanish and Mexican tax.
Debt to Income Ratio Calculator
Assess financial health with debt-to-income ratio calculation
Debt Payoff Planner
Plan your debt payoff with detailed amortization schedules, interest savings comparisons, and payoff timeline visualization.
BMI Calculator
Check if your weight is in the healthy range for your height.
Calorie Calculator
Determine your daily calorie requirements for weight loss, gain, or maintenance.
GPA Calculator
Compute your current or projected GPA with detailed course breakdown and semester tracking.
QR Code Generator
Create QR codes for various content types with custom styling
QR Code Scanner
Scan and decode QR codes from uploaded images
Emergency Fund Calculator
Determine emergency fund targets, create savings plans, and assess desperation financing risks with personalized recommendations.
Personal Retained Earnings Calculator
Calculate savings rate, track cumulative contributions, and assess financial discipline.
Unit Conversion Calculator
Convert between metric and imperial units instantly.
Image to PDF Converter
Convert images to a single PDF file with custom page settings.
PDF to Image Converter
Convert PDF pages to PNG or JPEG images with adjustable quality.
Document to Markdown Converter
Convert PDF, Word, Excel and PowerPoint files to Markdown.
Image to Vector Converter
Trace a PNG or JPEG image into scalable SVG vector art in your browser.
No walkthrough needed
This is a real loan calculator, right here on the landing page. Every Doonyx tool is this direct — inputs on the left, answer on the right, working shown.
$1,580.17
total interest $318,861.22
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