inside calc-sium
One app, twelve tools
More than a calculator — an everyday productivity companion for students, professionals, travellers, and families.
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Amazing Calculator
Fast, intuitive everyday calculations with a clean, beautifully designed interface.
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Unit Converter
Convert length, weight, temperature, area, volume, speed, pressure, energy, data storage, and more.
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Currency Converter
Quick conversions between major world currencies for travel, shopping, or managing finances.
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Smart Bills
Track paid and unpaid bills and get reminders so you never miss a due date.
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Smart Compare
Compare products with different quantities and prices to instantly find the better value.
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Bill Split & Tips
Split restaurant bills and calculate tips in seconds when dining with friends or family.
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EMI & Loan Calculator
Work out monthly EMI, interest payable, and total repayment before you commit to a loan.
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Gold Calculator
Calculate gold prices, making charges, and total purchase or resale value.
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World Information
Local time, date, currency, languages, and emergency numbers for countries worldwide.
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Percentage Calculator
Percentage of a number, increase/decrease, difference, and quick add/subtract — no manual formulas.
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Easy Tax Calculation
Add or remove tax from any amount in a single tap, for shopping, invoicing, or business.
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Kids Mode
Step-by-step explanations that help children understand math, not just see the answer.
