Free Online Calculators & Converters
Quick, no-signup utilities for finance, health, and everyday math—optimized for speed and accuracy.
Quick, no-signup utilities for finance, health, and everyday math—optimized for speed and accuracy.
Estimate monthly mortgage payment with principal & interest, property taxes, insurance, and HOA. Includes amortization preview.
OpenConvert between global currencies in seconds with up-to-date exchange rates.
OpenCalculate your Body Mass Index from height and weight. Simple, fast, mobile-friendly.
Openmortgage calculator with taxes and insurance • piti calculator • 30-year mortgage payment • currency exchange calculator • bmi chart • age in months calculator • percentage increase calculator • what is x% of y
These lightweight, mobile-friendly calculators are built for speed and clarity. Whether you’re checking a monthly mortgage payment, doing a quick percentage, or converting currencies, our goal is instant answers with simple inputs and clear results.
PITI: Principal, Interest, Taxes, Insurance—the core parts of a mortgage payment.
Amortization: How a loan balance declines over time as each payment splits between principal and interest.
APR: Annual cost of borrowing including interest and certain fees.
PMI: Mortgage insurance often required with <20% down payment.
Exchange Rate: Price of one currency expressed in another.
BMI: Body mass index = weight/height², a quick screen for weight categories.
Percent Change: The increase or decrease between two values as a percentage.
Yes, all tools are free to use with no registration required.
Absolutely. Pages are responsive and optimized for phones and tablets.
They’re designed for planning and education. For loans or medical advice, consult a professional.