π∑

One library. Every calculation.

Make Sense of the Numbers Behind Your Decisions

Thoughtful calculators for money and everyday decisions—built to make complex questions feel simple.

Try:
$   Finance$2,847Estimated monthly payment
PhysicsE = mc²
Statisticsσ 24.6
✓ Clear
results

Why Abaca Digital

Real money decisions.
Numbers you can follow.

A monthly payment on its own doesn't tell you much. Each calculator shows how the result was reached, which assumptions it rests on and what happens when you change them.

01

Show the working

See the full breakdown, then change the rate, term or deposit to compare one scenario with another.

02

Built for where you live

Calculators are grouped by country, using local currency, terms and rules where they apply.

03

Private by design

Calculations run in your browser. The figures you enter are never stored on our servers.

Financial calculators for mortgages, loans and everyday money

Wondering how much home you can afford, whether refinancing will pay off or what a loan will really cost? Choose your country, pick a calculator and get a clear breakdown of your own figures in seconds.

You'll find tools for mortgages and home equity, loans, savings and everyday budgeting, each set up for how things work in your country. Math and unit conversion calculators are here too, for the questions that come up in between.

Results are estimates for planning and comparison, not financial advice. Rates, fees, taxes and lending rules vary and can change, so check important figures with your lender or a qualified financial professional before you commit.