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  1. Home
  2. Calculators

Free Online Calculators

Accurate calculators for BMI, EMI, GST, percentages, discounts, age, and dates. Clear explanations and instant results for everyday decisions.

7

Free tools

All Calculators

Choose a tool below. Each includes step-by-step guides, FAQs, and privacy information.

Featured
BMI Calculator
Calculate your Body Mass Index and health category.
Age Calculator
Calculate exact age from date of birth.
Percentage Calculator
Calculate percentages, increases, and decreases.
Featured
EMI Calculator
Calculate loan EMI, total interest, and payment schedule.
New
Pakistan GST / Sales Tax Calculator
Calculate Pakistan sales tax (GST) inclusive and exclusive amounts in PKR.
Discount Calculator
Calculate discounts and final sale prices.
New
Date Calculator
Add or subtract days, weeks, and months from dates.

About Calculators

From health assessments and loan planning to tax calculations and shopping discounts, our calculators provide reliable results with transparent formulas. Each calculator includes context about what the numbers mean, helping you make informed decisions rather than just displaying a result. Whether you're tracking fitness goals, planning a home loan, or calculating GST for a business invoice, our tools are designed for clarity and accuracy.

Common Use Cases

How people use these tools in everyday work and personal projects.

Health & Fitness

Calculate BMI to understand weight categories and track progress toward health goals with your healthcare provider.

Finance & Loans

Estimate monthly EMI payments, total interest, and compare loan options before speaking with a lender.

Business & Tax

Calculate Pakistan sales tax (GST) inclusive and exclusive amounts for invoices, receipts, and pricing.

Everyday Math

Quick percentage calculations, discount comparisons, and date differences for shopping and planning.

Why Choose Vertex Solutions?

Transparent Formulas

Each calculator explains the formula used so you understand how results are calculated.

Mobile-Friendly

Use calculators on the go — at the store, gym, or office — with touch-optimized inputs.

No Registration

Get instant results without creating an account or providing personal information.

Calculators Tips

  • Compare EMI options at different interest rates before committing to a loan.
  • Use discount calculators to verify sale prices and compare deals across stores.
  • Calculate age precisely for form submissions and eligibility requirements.
  • Double-check GST calculations on invoices before sending to clients.

Calculators FAQ

Answers to the most common questions about our tools in this category.

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