All Calculators & Tools
Browse our complete collection of 36 free online tools
BMI Calculator
Calculate your Body Mass Index (BMI) and get personalized health advice based on NHS guidelines.
Use ToolMortgage Calculator
Calculate monthly mortgage payments and view detailed amortization schedules.
Use ToolWord Counter
Count words, characters, sentences, and paragraphs instantly with reading time and keyword analysis.
Use ToolStamp Duty Calculator
Calculate stamp duty for England (SDLT), Scotland (LBTT) and Wales (LTT). Covers first time buyers, …
Use ToolPassword Generator
Generate strong, secure random passwords. Customize length, characters, and check strength.
Use ToolLoan Calculator
Calculate loan payments, total interest, and view full amortization schedules for any loan type.
Use ToolBaby Name Generator
Find the perfect baby name. Filter by gender, origin, meaning, and popularity. Save favourites and …
Use ToolPercentage Calculator
Calculate percentages instantly — find what is X% of Y, percentage change, increase, decrease, and …
Use ToolQR Code Generator
Generate QR codes for URLs, text, WiFi, vCards, email, phone, and more. Download as PNG …
Use ToolTyping Speed Test
Test your typing speed and accuracy. Track WPM, find weak keys, and improve with practice.
Use ToolCompound Interest Calculator
Calculate compound interest with monthly contributions. See how your money grows over time with charts …
Use ToolLove Calculator
Calculate love compatibility between two names. Fun relationship compatibility test with detailed analysis.
Use ToolGPA Calculator
Calculate your GPA instantly. Supports US 4.0, UK degree classification, percentage, and international grading systems.
Use ToolTip Calculator
Calculate tips instantly. Split bills between friends with custom tip percentages and round-up options.
Use ToolDiscount Calculator
Calculate sale prices, savings, and percentage off. Support for stacked discounts and tax.
Use ToolScientific Calculator
Full-featured scientific calculator with advanced mathematical functions.
Use ToolUK Tax Calculator
Calculate your UK take-home pay for 2024/25 & 2025/26. Income tax, NI, student loans, pension …
Use ToolUK Salary Calculator
Calculate take-home pay from any salary input. Compare salaries, contractor day rates, hourly to annual …
Use ToolBMR Calculator
Calculate your Basal Metabolic Rate and daily calorie needs for weight management.
Use ToolCalorie Calculator
Calculate your daily calorie needs based on your activity level and goals.
Use ToolSavings Calculator
Plan your savings with compound interest calculations and growth projections.
Use ToolPatio Calculator
Calculate materials needed for your patio project including pavers and gravel.
Use ToolFree Online Calculators for Every Need
CalcTechLab offers a comprehensive collection of free online calculators and tools designed to help you with everyday calculations. Whether you need to calculate your BMI, plan your mortgage payments, track your calories, or convert units, we have the right tool for you.
Our Calculator Categories
- Health Calculators: BMI, BMR, calorie, pregnancy, and body fat calculators to help you monitor your health and fitness goals.
- Finance Calculators: Mortgage, savings, loan, and investment calculators for smart financial planning.
- Math Calculators: Scientific calculator, percentage, fraction, and equation solvers for students and professionals.
- Conversion Tools: Length, weight, temperature, and unit converters for quick and accurate conversions.
- Utility Tools: Date calculators, timers, random generators, and more everyday tools.
All our calculators are free to use, mobile-friendly, and designed with accuracy in mind. Bookmark your favorite tools and access them anytime you need quick calculations.