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Free Calculators & Converters

Free calculators and converters for everyday math, money, health, and units — mortgages, loans, taxes, percentages, currencies, and more. Fast, accurate, and private, with no signup required.

36 tools in Calculators & Converters

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Unit Converter

Convert between 12+ unit categories instantly

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Currency Converter

Real-time rates for 60+ world currencies

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BMI Calculator

Calculate Body Mass Index for adults and children

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Car Loan Calculator

Calculate auto loan payments and total costs

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Salary Calculator

Convert between hourly, monthly, and annual salary

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Age Calculator

Exact age with zodiac sign and life stats

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Date Duration Calculator

Calculate duration between two dates

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Percentage Calculator

NEW

Calculate percentages in 5 different ways instantly

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Mortgage Calculator

NEW

Monthly repayment, total interest & amortisation schedule

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Tip Calculator

NEW

Calculate tip and split the bill between any number of people

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TDEE Calculator

NEW

Calculate daily calories, BMR, and macros for your fitness goal

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VAT & Sales Tax Calculator

NEW

Add or remove VAT, sales tax, ICMS — UK, UAE, US, Brazil presets

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Markup, Margin & Discount Calculator

NEW

Price products, work out profit margin, apply discounts

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US Mileage Calculator

NEW

IRS mileage reimbursement: business, medical, charitable — 2026 rates

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US Self-Employed Tax Calculator

NEW

1099 quarterly estimated tax — SE tax (15.3%) + federal income tax, 2025 IRS rates

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US Mortgage PITI Calculator

NEW

Full monthly payment: Principal, Interest, Property Tax, Insurance & PMI — all 50 states

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US 401(k) Calculator

NEW

Project retirement savings with employer match and compound growth — 2025 IRS limits

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UK Student Loan Calculator

NEW

Monthly repayments, interest & write-off projections — Plans 1, 2, 4, 5 & Postgraduate

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Germany Net Salary Calculator

NEW

Brutto → Netto: income tax, solidarity surcharge & social contributions — 2024 rates

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US Tax Refund Estimator

NEW

Estimate your 2025 federal refund or balance due — IRS brackets, standard deduction & child tax credit

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Credit Card Payoff Calculator

NEW

Months to debt-free and total interest — by fixed payment or target date

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Compound Interest Calculator

NEW

Project investment growth with monthly contributions — principal vs interest chart

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Roth IRA Calculator

NEW

Project tax-free retirement growth — 2025 limits and tax saved vs a taxable account

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Home Affordability Calculator

NEW

How much house can you afford? 28/36 DTI rule with state property tax, insurance & PMI

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Rent vs Buy Calculator

NEW

Is it cheaper to rent or buy? True-cost comparison with break-even year

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US Sales Tax Calculator

NEW

Add or remove US sales tax — average combined state + local rates for all 50 states

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US Inflation Calculator

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What a dollar from any year is worth today — CPI data back to 1913

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Dubai RERA Rent Increase Calculator

NEW

Maximum legal rent increase for a Dubai property under the RERA rental index (Decree 43/2013)

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UAE Mortgage Calculator

NEW

Dubai property mortgage in AED — monthly payment, total interest, and upfront DLD/agency fees

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UAE Corporate Tax Calculator

NEW

9% federal corporate tax above AED 375,000 — with Small Business Relief and effective rate

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UAE Personal Loan Calculator

NEW

EMI on an AED personal or car loan, with flat-rate vs reducing-rate comparison

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UK Council Tax Calculator

NEW

Estimate your council tax bill by band (A–H) with the single-person discount

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UK Dividend Tax Calculator

NEW

Tax on dividends for 2025/26 after the £500 allowance — for directors & investors

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US Social Security Estimator

NEW

Estimate your monthly retirement benefit by claiming age (62, 67, 70) — 2025 PIA formula

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Savings Calculator

NEW

High-yield savings & CD growth with APY, initial deposit, and monthly contributions

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Net Worth Calculator

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Add up assets, subtract liabilities, and see your net worth with a clear breakdown