About CalcSutra

CalcSutra is a free collection of 180+ online calculators covering finance, health & fitness, math, and everyday life. Our goal is to make accurate calculations accessible to everyone — no sign-up, no subscription, no hassle.

What We Offer

• Financial: Mortgage, loan, compound interest, retirement, taxes, and more.
• Health & Fitness: BMI, calorie counter, body fat, ideal weight, and more.
• Math: Percentages, fractions, statistics, geometry, algebra, and more.
• Other: Age, tip, GPA, time, date, electrical, weather, and more.

Our Mission

We believe everyone deserves free access to accurate tools for making informed decisions — whether you're planning a budget, tracking your health, or solving a math problem.

Get in Touch

Have a suggestion, found an error, or want to request a new calculator? Contact us.