Today, students are blessed that they get access to a variety of calculators online. You name it, the Internet has it. All you have to do is explore the tool carefully. The calculators come in handy when the students have to solve intricate questions involving multi-step calculations. Moreover, they are useful at times when you are acing your economics, STEM subjects, etc., in the 11^{th} hour.

Mentioned below are certain websites, where you will free access to the calculators. There are no stipulations involved as to the number of times you can use the tool.

**1. Calculatorsoup.com**

This is one of the best websites where both teachers and students get access to a variety of calculators. You will get to see calculators for mathematics, finance, and others. Under the mathematics category, you can perform questions related to:

- Fractions
- General Math
- Algebra
- Statistics
- Discrete Math
- Geometry
- Plane Geometry
- Solid Geometry
- Trigonometry
- Word Problems

When you click on Finance, you will be able to solve numerical based on:

- Loans
- Interest and APR
- Time Value of Money
- Financial Ratios
- Sales and Retail
- Personal Finance, Accounting
- Depreciation
- Saving and Investing
- Money, Pay, Taxes
- Financial Index

And in the others column, you will see:

- Time and Date
- Construction
- Conversions
- Technology
- Physics
- Chemistry
- Games/Sports
- Health
- Miscellaneous
- Calculator Index

The cool thing about this site’s calculators is that many of them show an equation or work relevant to the problem. It assists users in comprehending how the calculator performs calculations. If you don’t find something that piques your interest, they give you the option of contacting them and requesting additional calculations.

With these tools, you shouldn’t have any problem-solving differentiation, integration, or microeconomics, or macroeconomics questions.

**2. Meracalculator.com**

When you visit this site, you will be surprised by the interface. In fact, this site is perfect for beginners who are new to mathematics topics. The teachers can also take advantage of the tools when they are checking numerous papers.

Under the category section, you will find areas, sports, chemistry, engineering, Physics, graphics, unit, math, weather, finance, currency, and much more. When it comes to Units/ Physics / Chemistry / Engineering, you will get to perform an operation on:

- Vertical velocity
- Sound intensity level
- Battery charge time
- Kinetic friction
- Capacitance
- Crude protein
- Nusselt number
- Specific gas constant
- Dalton’s Law
- Moment of force

And so on…Interestingly, in the Math/Area/Graphics/ Financial section, you will find:

- Bernoulli Inequality
- Half Angle Identity
- Point Slope Form
- Circumcenter of Triangle
- Partition calculator
- Slope- intercept form
- Midpoint 3 Dimensions
- Cone
- Rhombus
- Trapezium
- The volume of the hemisphere calculator
- Antiderivative(Integral) Calculator
- Derivative
- Antilog
- GCF Calculator
- Billion Conversion Calculator
- Power Reducing Formula
- Double angle calculator
- Exponent

And much more. There are tools in other languages as well, such as fraction, BMI, probability, cylinder, proportion, age, matrix, etc. And in the New Calculator section, you will get access to Long Division, Standard Deviation, Two’s Complement Addition Calculator, etc.

**3. Calcultor.net**

If you are looking for a website that offers a wide variety of calculators, you have arrived at the right place. Much like the previous website, the students will readily get the type of calculator they want for solving economics, finance, and mathematics assignments.

In the Financial Calculators section, you will find:

- Mortgage Calculator
- Auto Loan Calculator
- Amortization Calculator
- Investment Calculator
- Inflation Calculator
- Finance Calculator
- Income Tax Calculator
- Compound Interest Calculator
- Salary Calculator
- Sales Tax Calculator

The list goes on. As far as the math calculator is concerned, the list is short. You can perform scientific, fraction, percentage, random number, triangle, standard deviation calculations, and much more. In the Fitness and Health Calculators, you will find calorie, BMI, BMR, body fat, pregnancy calculator.

In the other Calculators section, you will observe:

- Age Calculator
- Date Calculator
- Time Calculator
- Hours Calculator
**GPA Calculator**- Grade Calculator
- Concrete Calculator
- Subnet Calculator
- Password Generator
- Conversion Calculator

As you can see, you get a one-stop solution to all your requirements. So, if you stumble upon a complex problem, visit this website. With these tools at your disposal, you shouldn’t have to break a sweat solving electrostatics, frequency deviation, or economics questions.

**4. Thecalculatorsite.com**

This site is one of the best on the Internet, as the number of options available is just incredible. You not only get to use the calculators but read interesting, informative articles on calculations as well.

Under the financial calculator section, you will find calculators that allow you to solve:

- Compound Interest (Daily)
- Amortization Calculator
- APY Calculator
- CAGR Calculator
- Car Loan Calculator
- IRR Calculator
- Loan Payoff Calculator
- Margin Calculator
- Price Per Square Foot
- Savings Calculators

The list is endless. Similarly, you will get access to cooking calculators that enable you to estimate oven temperature, grams to teaspoons, baking conversion, etc. In the handy and fun section, you will find tools that help you calculate age, LED savings, cubic feet, hex to decimal conversions, fractions, and much more.

In the unit conversion section, you will find:

- Acceleration Converter
- Energy Converter
- Fuel Economy Calculator
- Length and Distance
- Mass & Weight Converter
- Power Converter
- Pressure Converter
- Velocity Converter
- Water Weight Calculator

And you will find converters that help you convert grams to pounds,

- Centimeters to Inches
- Gallons to Pounds
- Hertz to Seconds
- Lumens to Watts
- Newton-Meters to ft-lb
- Ounces and Pounds
- Square Feet to Cubic Feet
- Square Feet to Cubic Yards
- Watts to Amps

Last but not least, you can stay health consciousness by taking advantage of the BMI, WHR, Sobriety, BMR calculators, etc.

These are some of the calculators that are widely used by the students. If you face issues while solving the numerical, do not hesitate to visit these websites. You will get instant solutions to your questions.