Simple, fast and accurate calculators and converters for fitness, pregnancy, nutrition and documents โ designed with a clean iOS-style interface for the best experience on every device.
Our most-used tools trusted by millions of users for accurate, instant results.
Calculate your Body Mass Index in metric or imperial. Get instant health category feedback โ underweight, normal, overweight or obese.
Find how many weeks pregnant you are, your trimester, and what's happening with your baby's development week by week.
Calculate your daily calorie needs based on age, weight, height and activity level. Get personalized weight loss or gain targets.
Enter your last menstrual period date to calculate your estimated due date, gestational age, and key pregnancy milestones.
Convert PDF to JPG, PNG, WebP, AVIF, SVG and more. Convert images back to PDF too. All browser-based โ zero uploads, zero privacy risk.
Calculate monthly EMI payments, total interest cost, and full repayment schedule. Supports any loan type with any interest rate or tenure.
Accurate health metrics at your fingertips โ BMI, BMR, body fat, ideal weight, pace and more.
Essential pregnancy tracking tools โ conception, due date, ovulation, period and weekly baby development.
Advanced nutrition and wellness calculators to help you optimize your diet and overall health.
Convert, compress and process PDF documents instantly โ fully browser-based, zero uploads required.
The ultimate PDF toolkit โ convert, compress, merge, split and edit PDFs with full format support including Base64 and SVG output.
Convert PDF pages to JPG, PNG, WebP, AVIF, SVG, TIFF, GIF or Base64. Convert images back to PDF. All processing is 100% local.
Reduce PDF file size significantly without visible quality loss. Perfect for email attachments and uploading to portals with size limits.
Practical finance tools to help you plan income tax and loan repayments with accuracy.
Three easy steps โ no account, no downloads, no waiting.
Browse 50+ free health, pregnancy, nutrition, PDF and finance tools. Find what you need in seconds.
Fill in your age, weight, dates or upload your file. Clean, intuitive forms designed for every device.
See your results immediately with clear explanations and actionable insights. No waiting, no email required.
Every tool on CalcoraTools is completely free โ no hidden fees, no subscriptions and no usage limits. Forever.
"CalcoraTools' pregnancy calculator is the most detailed I've found. It shows exactly what to expect each week with baby size comparisons. Used it every single day during my pregnancy!"
"The BMI and calorie calculator combo helped me set realistic fitness goals. The results are incredibly clear and the interface is beautiful โ honestly better than most paid apps I've tried."
"The PDF converter is brilliant โ converted an entire PDF report to individual JPGs in seconds, all in my browser with zero uploads to any server. This is exactly how all tools should work!"
We're constantly adding new calculators and tools. Subscribe for updates โ no spam, just useful tools delivered to your inbox.