All Calculators & Tools
Browse our complete collection of 12 free online tools
Mortgage Calculator
Calculate monthly mortgage payments and view detailed amortization schedules.
Use ToolStamp Duty Calculator
Calculate stamp duty for England (SDLT), Scotland (LBTT) and Wales (LTT). Covers first time buyers, …
Use ToolLoan Calculator
Calculate loan payments, total interest, and view full amortization schedules for any loan type.
Use ToolCompound Interest Calculator
Calculate compound interest with monthly contributions. See how your money grows over time with charts …
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 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 ToolSavings Calculator
Plan your savings with compound interest calculations and growth projections.
Use ToolInvoice Generator
Create professional invoices for free. Add your logo, line items, taxes, discounts, and download as …
Use ToolElectricity Cost Calculator
Calculate your electricity costs by appliance, room, or whole home. Compare rates across 50+ countries.
Use ToolMortgage Affordability
Find out how much house you can afford based on your income and expenses.
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.