I just launched CalcHub Pro, a free collection of 50+ online calculators. Here is what it includes and what I learned building it.

Live Site

https://calchubpro.netlify.app

What Calculators Are Included

Finance: EMI loan calculator, mortgage, compound interest, ROI, break-even, profit and loss, savings goal, inflation, depreciation, VAT, and loan comparison.

Health: BMI, daily calorie needs (TDEE), body fat percentage, sleep cycle calculator, water intake, calories burned, 1-rep max, and running pace.

Math: Percentage, discount, GPA, area, volume, and quadratic equation solver.

Science: Temperature converter, Ohm's law, force F=ma, density, pressure, and wavelength.

Engineering: Electricity bill, concrete, beam deflection, pipe flow rate, and power calculator.

Every day: Fuel cost, tip calculator, screen distance, pet age converter, and overtime pay.

Key Features

No sign-up required. All calculations run entirely in the browser — no data sent to any server.…