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Get accurate daily prayer times (Fajr, Sunrise, Dhuhr, Asr, Maghrib, Isha) for cities across Afghanistan including Kabul, Herat, Mazar-i-Sharif, Kandahar, Jalalabad, Kunduz, Ghazni, and Bamiyan. Also shows Qibla direction and Hijri date.

Get a rough estimate of the lunar phase (Paksha & Tithi).

Translate Gregorian dates into official Japanese Imperial Era dates.

Add or extract the 15% VAT for invoicing and SARS returns.

Compound Interest Calculator shows how an investment or savings balance grows over time with compounding, including optional regular monthly deposits. Enter your principal, interest rate, time period, and compounding frequency to see your final balance, total contributions, and interest earned. It is perfect for planning savings, investments, and retirement goals. It runs instantly in your browser.

Pick colors and get HEX/RGB codes.

Generate htpasswd files.

Calculate your CPF contributions and final take-home pay.

Verify the structure of a Nigerian Bank Verification Number.

Calculate your retirement contributions based on your salary.

Verify HMRC format rules for UK NI Numbers.

Calculate aspect ratios.

Calculate your property tax for England & Northern Ireland.

Repeat text multiple times.

Calculate your Body Mass Index.

Calculate tips and split bills.

Convert roman numerals.

Adjust historical dates for calendar drift.

Easily calculate GST components (CGST, SGST, IGST) for invoicing.

Verify the verification digits of a Brazilian CPF.

Calculate loan EMIs.

Sales Tax Calculator works out the tax amount and final total for any price and tax rate. You can add tax to a pre-tax price or reverse-calculate the net price from a tax-inclusive total. It is handy for shoppers, freelancers, and small businesses checking invoices and receipts. The math updates instantly in your browser.

Check if you pass the Canadian mortgage stress test rules.

Convert standard international dates into the lunar Islamic calendar.