Free online calculator directory

Free online calculators for VAT, percentages, time, business, and everyday math.

Calculate VAT, discounts, unit prices, profit margins, BMI, ages, time durations, construction quantities, and more with clear formulas and examples.

VAT Percentage BMI Age Profit Margin Unit Price

Popular Calculators

View all calculators →

VATVAT CalculatorCalculate VAT amount, add VAT to a price, or remove VAT from a VAT-inclusive price.%Percentage CalculatorCalculate percentages, percentage change, and percentage of a number.⌁Discount CalculatorFind discount amount and final price after a sale discount.%Percent Off CalculatorCalculate percent off from an original price and sale price.🛒Sale Price CalculatorFind sale price after discount or tax.▦Unit Price CalculatorCalculate price per unit and compare product value.↗Profit Margin CalculatorCalculate profit margin as a percentage from cost and selling price.↗Markup CalculatorCalculate markup percentage based on cost and selling price.

Calculator Categories

Browse all categories →

$ Financial Calculators15 calculators ± Math Calculators21 calculators ◷ Time & Date Calculators10 calculators ▣ Business Calculators51 calculators ⌂ Construction Calculators40 calculators ↔ Conversion CalculatorsComing soon ♡ Health & Fitness Calculators20 calculators ▰ Education Calculators3 calculators ✦ Other Calculators20 calculators

◷

Current Time Now

Check the current time with seconds. Accurate, reliable, and updated in real time.

--:--:--Loading date...

Open Time Tool

Why Use Calcroutine

Free & Easy to Use

All calculators are free and simple to use.

Accurate Results

Clear formulas and reliable calculation logic.

Fast & Instant

Get results in seconds without sign-ups or delays.

Works Everywhere

Use on desktop, tablet, or mobile.

Recently Added Calculators

View all new calculators →

LCCLabour Cost CalculatorEstimate labour cost from workers, days, and daily rate.CMCConstruction Material Cost CalculatorAdd up material quantities and unit prices for a project.RCCRoofing Cost CalculatorEstimate roofing cost from sheets, price, and accessories.PCCPaint Cost CalculatorEstimate paint cost from litres needed and price per litre.TACTile Adhesive CalculatorEstimate tile adhesive bags from area and coverage.

Frequently Asked Questions

Are Calcroutine calculators free to use?

Yes. Calcroutine calculators are free to use and do not require a sign-up.

Do I need to create an account?

No. You can use the calculators instantly without creating an account.

Are the calculations accurate?

The tools use standard formulas and show examples where possible, but always double-check important financial, legal, tax, or health decisions.

Can I use Calcroutine on mobile?

Yes. The site is designed to work on phones, tablets, and desktop screens.