Mortgage & Loan Planner
Calculate your monthly exposure and total interest over time. Use our GEO-ready selector to switch between global currencies.
Formula: M = P [ i(1 + i)^n ] / [ (1 + i)^n – 1 ]. We ensure 100% mathematical accuracy for bank-grade planning.
BMI Health Index
Track your Body Mass Index with precision. Based on World Health Organization standards.
- Under 18.5: Underweight
- 18.5 – 24.9: Healthy Weight
- 25.0 – 29.9: Overweight
- 30+: Obese
Smart Ratio Calculator
Quickly find percentages for business, taxes, or tips.
Frequently Asked Questions
How is the BMI calculated?
BMI is your weight in kilograms divided by the square of your height in meters. It is a universal screening tool used by healthcare professionals worldwide.
Is my data private?
Absolutely. All calculations are performed on your local device (client-side). We do not store or transmit any of your personal input data.
Are these tools free to use?
Yes, 100% free. No subscription, no signup, no hidden charges. All tools on SayoraTools are completely free for everyone.
Do these tools work on mobile?
Yes! SayoraTools is fully optimized for all devices — mobile, tablet, and desktop — for a seamless experience anywhere.