Finance Calculators

Car Custom Duty Calculator NigeriaEstimate the duty, levies and VAT payable to clear a used or new car into Nigeria under the 2026 rates.

Website Ad Revenue CalculatorEstimate monthly and yearly website ad earnings from traffic, ad placements, click-through rate and CPC.

VAT CalculatorAdd VAT to a price or take it out of one. Works from net to gross and from gross to net, for any VAT rate.

Sales Tax CalculatorWork out the sales tax and the final price of a purchase, or find the price before tax from a total you already paid.

Rent CalculatorFind out how much rent you can afford from your income, using the 30 percent rule and a check against your other debts.

CD CalculatorSee what a certificate of deposit will be worth at maturity, how much interest it earns and its effective APY.

APY CalculatorTurn an interest rate into the annual percentage yield you really earn once compounding is counted, or work backwards from an APY.

ROI CalculatorWork out the return on an investment as a percentage, the profit in money and the annualized return over the time you held it.

Interest Rate CalculatorFind the interest rate that turns one amount into another, or work out the simple or compound interest earned at a given rate.

Bond CalculatorFind a bond’s yield to maturity from its price, plus the current yield, coupon payments and total profit if you hold it to the end.

Bond Price CalculatorWork out what a bond is worth today from its coupon, maturity and the market yield, with its premium or discount and duration.

Mobile App Ad Revenue CalculatorEstimate mobile app ad revenue from daily users, ad impressions, fill rate and eCPM.

Nigeria Personal Income Tax CalculatorEstimate Nigerian personal income tax with the 2026 bands, rent relief and take-home pay.

Revenue CalculatorCalculate gross and net revenue from units sold, price, discounts and returns.

Money Factor CalculatorConvert money factor to APR and estimate a monthly car lease payment.

Margin CalculatorCalculate gross profit margin and markup, or the price needed for a target margin.

Profit CalculatorCalculate profit, profit margin and break-even units from price, cost and expenses.

3x Rent CalculatorFind the income needed under the 3x rent rule, or the highest rent you qualify for.

Attrition Rate CalculatorCalculate employee attrition and retention rates from headcount and leavers.

Compound Interest CalculatorCalculate compound interest on savings or investments, with optional monthly contributions.

Loan Payment CalculatorCalculate monthly loan payments, total interest and the saving from extra payments.