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Quaestio

Money

Money over time and money between countries: loan costs, savings, VAT, tips and exchange rates.

Money maths

Take-home pay calculator

Enter your salary before tax and where you live to see the Income Tax, National Insurance and student loan repayments taken each month, and what you take home.

Loan calculator

Enter the amount, the rate and the term, and the monthly payment and full schedule are shown.

Compound interest

Enter a starting amount, a return and a horizon, and see how the money grows year by year.

Inflation

Enter an amount and two years, and see what the amount comes to.

Index-linking calculator

Enter the amount and choose the base month and the review month, and the amount is uprated by the index as in an index-linking clause.

VAT calculator

Work out VAT in both directions: add it to a net price, or take it out of a gross price.

Tip calculator

Enter the bill, the tip you want to leave and how many you are, and the amount per person is shown.

Electricity cost calculator

Choose an appliance or enter its power and running time, add your unit rate, and the energy used and its cost are shown.

Fuel cost calculator

Enter the distance, how economical the car is and the price, and the cost of the journey is shown in total and per person.

Currency

Currency converter

Daily reference rates from the European Central Bank. Change the amount or currency and the result updates instantly.