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.…