Calculators

Arithmetic you can check

None of these look up a market price, an exchange rate or a tax table. They take the rates you give them and show their working — and say so when a target cannot be reached rather than rounding towards one. Nothing you type leaves your browser.

  1. 01SIP to SWPBuild a corpus with monthly contributions, then draw it down. Shows how long the withdrawals last at the return you assume.Accumulation · Withdrawal · Depletion date
  2. 02ZakatAdd up zakatable assets, subtract what you owe, and compare against a nisab worked out from the gold or silver price you enter.Nisab · Liabilities · 2.5%
  3. 03Share averagingHow many more shares to buy, at today’s price, to bring your average cost down to a target — or why the target is out of reach.Average cost · Target price
  4. 04Loan & EMIThe monthly instalment on a loan, what it costs in interest over its life, and what a little extra each month would save.Instalment · Schedule · Early payoff
  5. 05RetirementWhat your savings will be worth when you stop, what the income you want will cost by then, and the monthly amount that closes the gap.Corpus · Drawdown · Shortfall
  6. 06Capital gains taxThe tax on a single sale at the rates you enter, with a holding-period threshold, an annual allowance and tax already withheld.Short vs long term · Allowance · Withholding
  7. 07InflationWhat a sum will cost later, and what a sum arriving later is worth today. Two different questions that long projections often mix up.Future cost · Real value · Halving time