Online Calculators

Use free calculators for salary tax, gratuity, provident fund growth, age, percentages, units and more with instant browser-based results.

Calculators for everyday estimates and planning

The calculator collection includes general math, salary and tax estimates, employment-benefit estimates and provident-fund projections. Inputs stay in the page and results are generated immediately without creating an account.

Country-specific financial and employment rules can change. ToolNova calculators are planning aids, not legal or financial advice, so verify current official rules before making a filing, settlement or other important decision.

Each calculator page explains the assumptions behind its result and provides related tools for the same task area. When a value will be used in an official form, payroll decision or contract settlement, keep the source figures and verify the final number independently.

All Calculators & Generators

Age Calculator

Work out an exact age in years, months and days from a birth date.

Percentage Calculator

Find a percentage of a number, or the percentage change between two numbers.

Unit Converter

Convert length, weight, temperature, area, volume, speed and data storage units.

International Salary Calculator

Calculate net salary and tax for Pakistan, UK, UAE, Saudi Arabia and Qatar — more countries coming.

Pakistan Salary Tax Calculator

Estimate Pakistan salary tax and take-home pay for FY 2026–27.

Password Generator

Generate strong random passwords with a live strength indicator.

QR Code Generator

Turn text or a URL into a downloadable QR code.

UAE Gratuity Calculator

Estimate UAE private-sector end-of-service gratuity from basic salary and years of service.

Saudi End of Service Calculator

Estimate Saudi end-of-service benefits for resignation or termination.

Provident Fund Calculator

Project employee and employer contributions, compound growth and final balance in your own currency.

Pakistan Provident Fund Calculator

Project PF contributions, growth and final balance with editable employee and employer rates.

How to use online calculator results

A calculator can make arithmetic consistent, but the answer is only as reliable as the inputs and assumptions. For salary, gratuity and provident-fund tools, verify the tax year, salary basis, service period and contribution rules shown on the page before using the result for planning.

Country-specific rules can change, which is why ToolNova states assumptions and avoids silently guessing unsupported tax systems. Results are estimates unless an official authority or your own scheme documents confirm the same treatment.

For important financial, employment or tax decisions, use these tools to understand a scenario and then confirm the final number with the relevant authority, employer documents or a qualified professional.

Read practical guides