11 free calculators & converters — no ads, ever
The Universal
Calculator Engine
Mortgage, BMI, currency, compound interest, units, and more. Every tool is instant, accurate, and 100% free.
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Mortgage CalculatorCurrency ConverterCompound Interest CalculatorLoan CalculatorSales Tax CalculatorTip CalculatorBMI CalculatorCalorie Calculator (TDEE)Percentage CalculatorLength ConverterAge Calculator
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Finance
Finance
Mortgage Calculator
True monthly PITI payment: P&I + property tax + insurance + PMI.
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Finance
Currency Converter
Convert between 20+ global currencies in real time.
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Finance
Compound Interest Calculator
Grow $1,000 to $1M — see compound interest in action.
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Finance
Loan Calculator
Monthly payment & total interest for any fixed-rate loan.
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Finance
Sales Tax Calculator
Add tax to any price or reverse-calculate pre-tax amount.
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Finance
Tip Calculator
Bill + tip + split — per person total in seconds.
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Health
Unit Converter
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