About Us

Last updated: 2026-04-27

Welcome to Toolgen — your trusted source for free, accurate, and beautifully simple online calculators.

Our mission

We build calculators that solve real-world problems for students, engineers, homeowners, investors, and curious minds. Every tool is designed to be fast, mobile-friendly, and free of clutter — so you can get an answer in seconds.

What we offer

• Financial calculators — mortgage, loan, investment, retirement, tax, salary, tip, and more.
• Health & fitness — BMI, BMR, body fat, nutrition, age and date.
• Math & science — scientific, fraction, percentage, root, binary, and more.
• Engineering — voltage drop, cable size (AS/NZS 3008), Ohm's law, IDMT relay timing, electricity cost.
• Lifestyle & utility — wedding budget, eBay fees, concrete volume, snow day predictor.

Why people choose Toolgen

• No sign-up required — open the page and start calculating.
• All calculations run in your browser — your data never leaves your device.
• Mobile-first responsive design that works on any screen.
• Detailed explanations and formulas alongside every result.

Contact

Have a calculator request, feedback, or a partnership idea? Email us at info@toolgen.io or visit our contact page.