This post has the most useful calculators on the internet. The best calculators of the various kind have been compiled for you.

Some of the calculators that you can find here are Percentage, GPA, Tip, Scientific, Fraction, Age, Graphing and the list will go on. Check out the complete post and bookmark it for future use!

Let’s begin with this Calculator journey.

## A) Standard Calculator

**Google Calculator**: You can find it on Google by searching for “**Calculator**“. It is that easy.

**Windows Calculator**: You can also find it on your computer by searching “**Calculator**” when you **click** on the **start button** on your Windows computer.

The **Standard calculator** on your Windows computer isn’t that basic!

By clicking on the navigation option (see image) on the calculator you can find options such as **Scientific, Programmer, Date Calculation**.

There are also these converters in-built as well: **Currency, Volume, Length, Weight and Mass, Temperature, Energy, Area, Speed, Time, Power, Data, Pressure and Angle**.

## B) Percentage Calculator

Visit: https://percentagecalculator.net/

With this site you can calculate percentage in **3 scenarios**:

- What is X% of X?
- X is what percent of X?
- What is the percentage increase or decrease from X to X?

Replace X with any number you need to calculate the percentage of.

## C) GPA (Grade Point Average) Calculators

For College GPA Calculator you can try any of these:

- https://gpacalculator.net/college-gpa-calculator/
- https://www.rapidtables.com/calc/grade/college-gpa-calculator.html
- https://www.collegesimply.com/gpa-calculator/college-gpa-calculator/

For High School GPA Calculator try any of these:

- https://gpacalculator.net/high-school-gpa-calculator/
- https://gpacalculator.io/high-school-gpa-calculator/
- https://www.rapidtables.com/calc/grade/high-school-gpa-calculator.html

For Middle School GPA Calculator try any of these:

- https://gpacalculator.net/middle-school-gpa-calculator/
- https://www.calculatorgenius.com/grade-calculators/middle-school-gpa-calculator/

## D) Tip Calculator

For this, you can search for “**tip calculator**” in Google Search (see below image) and you’ll find it!

Or you can try any of these links:

- https://www.calculator.net/tip-calculator.html
- https://www.calculatestuff.com/miscellaneous/tip-calculator

## E) Scientific Calculator

As mentioned, you can use the Google Calculator or Windows Calculator for all your Scientific calculations. Or you can try any of these links:

## F) Fraction Calculator

For all your fraction calculation you can try any of these links:

- https://www.calculatorsoup.com/calculators/math/fractions.php
- https://www.calculator.net/fraction-calculator.html

## G) Age Calculator

With this Age Calculators, you can know your age in years, months, weeks and days. The first link also tells your age in hours, minutes and even seconds.

- https://www.calculator.net/age-calculator.html
- https://www.calculatestuff.com/miscellaneous/age-calculator

## H) Graphing Calculator

For all your Graphing needs, try any of these links:

- https://www.desmos.com/calculator
- https://www.symbolab.com/graphing-calculator
- https://www.mathway.com/Graph

## I) Tax Calculator

To calculate your Income Tax you can try any of these links:

- https://smartasset.com/taxes/income-taxes
- https://www.hrblock.com/tax-calculator/
- https://turbotax.intuit.com/tax-tools/calculators/taxcaster/

## J) Time Calculator

You can calculate the time between 2 intervals using one these links:

- https://www.calculator.net/time-calculator.html
- https://www.ontheclock.com/time-duration-calculator-hours-minutes.aspx
- https://www.calculatorsoup.com/calculators/time/hours.php

## K) Paycheck Calculator

For all your Paycheck Calculations, hourly or Salary try these:

- https://smartasset.com/taxes/paycheck-calculator (Both Hourly and Salary)
- https://www.paycheckcity.com/calculator/hourly (Hourly)
- https://www.paycheckcity.com/calculator/salary (Salary)
- https://www.adp.com/resources/tools/calculators/hourly-paycheck-calculator.aspx (Hourly)
- https://www.adp.com/resources/tools/calculators/salary-paycheck-calculator.aspx (Salary)

## L) Algebra Calculator

Enter an Algebra problem and get an immediate solution using these:

- https://www.mathpapa.com/algebra-calculator.html
- https://www.symbolab.com/solver/algebra-calculator
- https://www.mathway.com/ProblemWidget.aspx?subject=Algebra

## M) Concrete Calculator

Using these concrete calculator you can find out the volume and weight of the required concrete to cover an area.

- https://www.calculator.net/concrete-calculator.html
- https://www.concretenetwork.com/concrete/howmuch/calculator.htm
- https://www.calculatorsoup.com/calculators/construction/concrete-calculator.php
- https://www.sakrete.com/product-calculators

## N) Mortgage Payment Calculator

You can try the in-built Mortgage calculator from google by searching for “mortgage payment calculator” or you can try these links:

## O) Amortization Schedule Calculator

You can try these links:

- https://www.bankrate.com/calculators/mortgages/amortization-calculator.aspx
- https://www.calculatestuff.com/financial/loan-amortization-calculator
- https://www.mortgagecalculator.org/calcs/amortization.php
- https://www.calculator.net/amortization-calculator.html

## P) Factoring Calculator

You can try these links:

- https://www.mathpapa.com/factoring-calculator/
- https://www.symbolab.com/solver/factor-calculator
- https://www.freemathhelp.com/factoring-calculator.php
- https://www.wolframalpha.com/calculators/factoring-calculator

## Q) Home Loan Calculator

Try searching for “**home loan calculator**” on Google to use the in-built home loan calculator from Google or try these links:

- https://www.bankrate.com/calculators/mortgages/mortgage-calculator.aspx
- https://www.nerdwallet.com/mortgages/mortgage-calculator
- https://www.quickenloans.com/calculator-mortgage
- https://www.zillow.com/mortgage-calculator/
- https://www.hsh.com/mortgage-calculator.html

## R) BMR (Basal Metabolic Rate) Calculator

Try any of these to calculate your basal metabolic rate (BMR):

- https://www.calculator.net/bmr-calculator.html
- https://www.active.com/fitness/calculators/bmr
- https://www.iifym.com/bmr-calculator/
- https://idealprotein.com/bmr-calculator-2/

## S) Time Card Calculator

Using this calculate your weekly timecard hours easily:

- https://www.redcort.com/free-timecard-calculator/
- https://www.timeclockwizard.com/free-online-time-card-calculator-breaks
- https://www.copleys.com/timecard/
- https://clockify.me/time-card-calculator

## T) Cost of Living calculator

Find out what it costs for you to live in a particular city:

- https://www.nerdwallet.com/cost-of-living-calculator
- https://smartasset.com/mortgage/cost-of-living-calculator
- https://www.bankrate.com/calculators/savings/moving-cost-of-living-calculator.aspx
- https://money.cnn.com/calculator/pf/cost-of-living/index.html

## U) Tire Size Calculator

You can calculate the tire size here before making a purchase:

- https://tiresize.com/calculator/
- https://www.1010tires.com/Tools/Tire-Size-Calculator
- https://www.tacomaworld.com/tirecalc

## V) Mileage Calculator

Use any of these to determine the mileage between 2 places:

- https://www.calculator.net/mileage-calculator.html
- http://maps.randmcnally.com/mileage_calculator
- http://www.webflyer.com/travel/mileage_calculator/

## W) Square Feet Calculator

Useful in Construction projects and for self-reference to determine the square footage of an area:

- https://www.thecalculatorsite.com/misc/square-footage-calculator.php
- https://www.calculatorsoup.com/calculators/construction/square-footage-calculator.php
- https://www.squarefootagearea.com/calculator/square-footage-calculator/

## X) Matrix Calculator

Try any of these links to calculate matrices:

- https://matrixcalc.org/en/
- https://www.symbolab.com/solver/matrix-calculator
- https://www.calculator.net/matrix-calculator.html
- https://matrix.reshish.com/

## Y) Slope Calculator

Determine the steepness and direction of a line using these:

- https://www.calculator.net/slope-calculator.html
- https://www.symbolab.com/solver/curved-line-slope-calculator
- https://www.omnicalculator.com/math/slope

## Z) Salary to Hourly Calculator

With these calculators, you can determine your hourly salary-annually and vice versa.

- https://www.calculators.org/savings/wage-conversion.php
- https://www.calcxml.com/calculators/convert-salary-to-hourly
- https://www.calcxml.com/calculators/convert-hourly-to-salary
- https://www.omnicalculator.com/finance/salary-to-hourly

very nice online calculator plz inform about uses