Free calculators for investing, loans, debt, tax & zakat — private, instant, no sign-up required.
Thirteen precision tools. Every calculation runs 100% in your browser.
Watch small monthly contributions compound into serious wealth, year by year.
Explore →Monthly payment, total interest and the full amortization schedule.
Explore →Avalanche vs snowball: which method clears your debt faster?
Explore →Your ideal safety net and exactly how fast you can build it.
Explore →Project your corpus and monthly income in today's money.
Explore →FBR slabs for FY 2026-27 — monthly tax and exact take-home pay.
Explore →Nisab check plus 2.5% on cash, gold, silver and business assets.
Explore →Convert annual salary to hourly rate (and back) in one click.
Explore →Project your SIP's growth — total invested and gains at a glance.
Explore →How much house can you afford? 28/36 rule with tax & insurance.
Explore →End-of-service benefit from last salary, years and day basis.
Explore →Double-rate overtime pay under Pakistan labor law.
Explore →Years to double your money at any rate — or the rate you need.
Explore →Your numbers never leave your browser. No accounts, no tracking of inputs.
Every tool shows its formula and step-by-step breakdowns.
No sign-up, no paywall, no waiting. Results as you type.
Guides that pair with the calculators.
The formula, the magic of starting early, and common mistakes.
Explore →Math vs psychology — the honest comparison with numbers.
Explore →Every FBR slab with worked examples at real salary levels.
Explore →3 vs 6 months, where to keep it, and how to build it fast.
Explore →Nisab, purity adjustments, and a worked example.
Explore →The decision rule, with real numbers.
Explore →Formula, worked examples, and the Rule of 72.
Explore →The five usual reasons — and how to reconcile.
Explore →Yes — every tool on ArthCalc is free with no account, no limits and no paywall. The site is supported by advertising.
All calculations run locally in your browser using JavaScript. Your inputs are never sent to our servers, stored, or shared. See the privacy policy.
Calculators use standard financial formulas and round to the nearest unit of currency. They are planning estimates — actual loan terms, taxes and investment returns depend on your provider and circumstances.
If you are employed in Pakistan, the salary tax calculator gives an instant take-home figure. For long-term planning, try the compound interest calculator — it surprises almost everyone.
Pakistan salary tax for FY 2026-27, calculated in seconds.
Calculate my tax