22+ Smart Calculators for Finance, Health, Education, Business & Daily Life

Percentage Calculator

Quickly find percentage values in seconds.

X is what % of Y

X Y

Result: —

X% of Y

X (%) Y

Result: —

% Increase / Decrease

Old

New

Change: —

Profit / Loss

Instantly calculate profit, loss & margins.

Cost Price

Selling Price

Outcome

—

Amount

—

Percentage

—

GST Calculator

Add or remove GST with one click.

Amount

GST Rate (%)

Add GST
Remove GST

0% 5% 12% 18% 28%

Base

—

GST

—

Total

—

Discount Calculator

Find final price after discount instantly.

Original Price

Discount (%)

You Save

—

Final Price

—

Effective %

—

Salary Calculator

Estimate monthly or yearly salary after deductions.

Basic + Allowances

Tax (%)

Other Deductions

Tax Amount

—

Net Salary

—

In-Hand %

—

BMI Calculator

Check your Body Mass Index for health tracking.

Height (cm)

Weight (kg)

BMI

—

Age Calculator

Find exact age in years, months & days.

Date of Birth

As of

Age: —

Simple Interest

Calculate SI with formula P × R × T / 100.

Principal

Rate (% p.a.)

Time (years)

Simple Interest

—

Total Amount

—

Compound Interest

Get CI with yearly, half-yearly or quarterly compounding.

Principal

Rate (% p.a.)

Compounds/year

Time (years)

Compound Interest

—

Total Amount

—

Loan EMI

Estimate monthly installments & interest.

Loan Amount

Annual Rate (%)

Tenure (months)

Monthly EMI

—

Total Interest

—

Total Payment

—

Unit Converter (Length & Weight)

Convert length, weight, volume & more.

Value

From

Result: —

Temperature Converter

Convert °C ↔ °F ↔ K easily.

Value

From

Result: —

Currency Converter (Manual Rate)

Get quick currency conversion results.

Amount

Rate (To per From)

From Currency

To Currency

Converted: — (Enter current market rate manually)

Date Difference

Find days, weeks, or months between two dates.

From

Days: —

Simple Calculator

Basic arithmetic: +, −, ×, ÷ in one place.

Scientific Calculator

Advanced math functions with trigonometry & logs.

Use degrees for trig.

Square Root / Power

Calculate √, cube root & exponents easily.

Value

Power (y)

x^y

—

√x

—

Fractions Calculator

Simplify fractions or convert to decimals.

A (a/b)

B (c/d)

Operation

Result: —

Speed / Distance / Time

Solve S = D ÷ T problems fast.

Distance (km)

Time (hours)

Speed (km/h)

Percentage Increase/Decrease

Find % growth or reduction instantly.

Old

New

Change: —

Average & Ratio

Quickly solve averages & ratios.

Average

Numbers (comma/space separated)

Count: —

Sum: —

Average: —

Ratio

Simplified: —

Percent Split: —

Area & Perimeter

Calculate shape area & boundary length.

Shape

Dim 1

Dim 2

Area: —

Perimeter: —

Volume Calculator

Find volume of cubes, cylinders, cones & more.

Solid

Volume: —

Benefits

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About Us

Welcome to AK calculator — a collection of fast, reliable and ad-free online tools. From simple calculations to advanced financial, health and conversion tools, we bring everything in one place. Our mission is to save your time with accurate results that work instantly on any device.Whether you’re a student, professional, or just solving daily math, our tools make it easy and stress-free. With 20+ calculators and more coming soon, we are your trusted partner for quick answers anytime.