Everyday tools for study, fitness and text
Work out your GPA or the grade you need on the final, check your BMI and daily calories, fix grammar, count words and make a QR code. Everything runs in your browser, except IP & DNS Lookup, which asks our server, and the pet reminder's optional notifications, which send only the times.
27 tools
Study and school
Fitness calculators
BMI CalculatorBody mass index and healthy weight range.Calorie CalculatorDaily calories to lose, keep or gain.Macro Meal PlannerProtein, carbs and fat per meal.Body Fat CalculatorUS Navy method with a tape measure.Ideal Weight CalculatorFour formulas and a healthy range.One Rep Max CalculatorYour 1RM and training percentages.Waist-to-Hip RatioBody shape and health risk.
Loans and savings
Writing and text
Grammar & Writing CheckerSpelling, grammar, style and readability.Readability CheckerWord CounterWords, characters and reading time.Case ConverterUPPER, lower, Title, camelCase and more.Remove FormattingPaste messy text, get clean plain text.Remove Line BreaksJoin lines into one paragraph.Remove Duplicate LinesDedupe and sort lists.
QR codes, barcodes and network
Pets
Guides for these tools
- Barcode Types Explained: EAN-13, UPC-A, Code 128 and More
- 15 Common Grammar Mistakes and How to Fix Them
- Compound Interest Explained With Simple Examples
- How EMI Is Calculated: Formula, Examples and Tips
- How Many Calories Do I Need per Day? BMR & TDEE Explained
- How Mortgage Amortization Works (With a Real Example)
- How to Add a Logo to a QR Code (and Keep It Scannable)
- How to Calculate Your Exact Age in Years, Months and Days
Frequently asked questions
Are the fitness calculators medical advice?
No. BMI, body fat and calorie numbers are estimates from standard formulas. They're a starting point to talk through with a doctor or dietitian.
Does the grammar checker send my text anywhere?
No. It checks your writing inside your browser, so drafts, essays and emails stay on your device.