HisabCalc gives you eight ready-made calculators that you can drop into any post, page or widget with a block or a shortcode. Everything is calculated inside the visitor’s browser, so the pages stay fast and no personal data ever leaves the reader’s device.

Included calculators

Loan / EMI calculator – monthly instalment, total payable, total interest, plus a year-by-year breakdown table.
Mortgage / home loan calculator – property price, down payment, monthly payment and the real total cost.
Zakat calculator – gold, silver, cash, business stock, receivables and debts, with the 2.5% zakat and a nisab check.
Compound interest / FDR maturity – what a lump sum becomes at a fixed rate, with yearly, half-yearly, quarterly or monthly compounding.
Monthly savings / DPS – what a monthly deposit grows into over time.
BMI calculator – with both WHO and South Asian cut-off points, plus the healthy weight range for the visitor’s height.
Percentage calculator – five everyday percentage questions in one: percent of a number, what percent, percentage change, increase and decrease.
Age calculator – exact age in years, months and days, total days and the countdown to the next birthday.

Why people keep it installed

Fast. One small CSS file and two small scripts. No jQuery, no external requests, no fonts to download.
Private by design. Nothing is posted to your server and nothing is stored. There is no tracking in the plugin.
Responsive. Works on a 320px phone and inside a full-width block.
Theme friendly. Colours come from the customiser-style accent setting, and a dark-mode palette follows the visitor’s system preference.
Translatable. Every label can be translated into your own language.
SEO-friendly output. Results appear instantly on the page, which keeps visitors on the page longer.

How to add a calculator

Edit a post or page and click the + button, then search for “HisabCalc”.
Pick the calculator you want from the block sidebar.
Or use a shortcode: [hisabcalc id="loan-emi"], [hisabcalc id="zakat"], [hisabcalc id="bmi"].

Available ids: loan-emi, mortgage, zakat, compound-interest, dps, bmi, percentage, age.

Settings

Under Settings > HisabCalc you can choose the currency, the number format locale, how many decimal places to show, the accent colour and whether the small credit line is displayed.

HisabCalc – Loan, Zakat, BMI & Age Calculators