Instant Calculator

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🧮 15 Specialized Calculators
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💰 Finance & Daily Life
• Discount Calculator — Instantly calculate sale prices and savings
• Loan Calculator — Monthly payment, total interest, full amortization
• Savings Calculator — Final balance and after-tax interest
• Currency Converter — Real-time rates for 14 currencies

🍽️ Dining & Splitting
• Tip Calculator — Split bills with custom tip percentages
• Dutch Pay — Divide any bill evenly among any number of people

🏃 Health
• BMI Calculator — Body mass index with health grade (ft/lb or cm/kg)
• Age Calculator — Exact age in years, months, days + birthday countdown

📐 Unit Conversion
• Length, Weight & Temperature converter (imperial ↔ metric)
• Fuel Efficiency — MPG and km/L
• Unit Price Comparison — Find the better deal instantly
• Date Calculator — Days between dates, D-day countdown
• Math & Engineering — Expression evaluator, trig, fraction→decimal

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✨ Key Features
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🌍 4 Languages — Korean · English · Japanese · Chinese
🌙 Dark Mode / Light Mode toggle
⭐ Favorites — Pin your most-used calculators to the top
📋 History — Review any past calculation anytime
🔤 Large Text Mode — Bigger display for comfortable reading
💱 Live Exchange Rates — Auto-updated via KEB Hana Bank

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No sign-up. No clutter. Open the app and start calculating.