Free Financial Calculators

Make smarter money decisions with a suite of fast, free financial calculators — no account, no spreadsheet, no friction. Each tool runs entirely in your browser, updates as you type, and turns the maths behind everyday financial choices into a clear, visual answer in seconds.

Whether you are projecting how your savings compound, checking how inflation eats into your purchasing power, sizing up a mortgage, or planning your retirement, these calculators give you a trustworthy number you can actually act on.

Our financial calculators

Compound Interest Calculator

See how regular contributions and reinvested returns snowball over the years. Includes monthly contributions, adjustable compounding frequency and an inflation adjustment so you see your real future balance.

Inflation Calculator

Understand what your money will really be worth in the future. See both the rising cost of goods and the falling purchasing power of a fixed amount, year by year.

Mortgage Calculator

Estimate your monthly payment, total interest and the full amortization schedule — and compare bank-linked products at their real, all-in cost before you sign.

Home Purchase Calculator

Work out the total upfront cash you need to buy a property: down payment, taxes, notary, registry and agency fees, and any products bundled with the mortgage.

Retirement Calculator

Plan your path to financial independence with life-stage contributions, inflation, the 4% rule, and capital gains and wealth tax — projected year by year.

Why use these calculators?

  • Free and private — everything runs in your browser. No registration, no data leaves your device.
  • Instant and visual — results, charts and tables update live as you change the inputs.
  • Realistic — they model the factors that actually move the result, like inflation, taxes and recurring contributions, not just a single headline number.

Who are they for?

Anyone making a real financial decision: first-time home buyers checking what they can afford, savers comparing where to put their money, and long-term investors planning for retirement. You do not need a finance background — each calculator explains what the numbers mean.

Pick a calculator above to get started, or read the in-depth guide on each tool's page.

Take control of your wealth

Start organizing your personal finances today. No complicated spreadsheets, absolute privacy, and total control.

Launch Aurum

Free and private. Your data never leaves your device.