Calculator Library maintains a lot of online calculators, with new ones added regularly. Which of our calculators are the most popular? Let's look at the top 10.

1. Word Calculator

Our Word Calculator is designed to count the number of words and characters contained in a block of text such as a headline, article or paragraph. The number of words and characters will be counted and updated automatically as you enter or change your text.

There are many situations where you need to limit the number of words or characters in a text block such as Social Media, essays and blog posts.

After you've edited your text, you can copy the result to your clipboard to paste into your chosen application.

2. Financial Programmable Calculator

This calculator is one of our favorites and we use it a lot. It's a fully functional online version of the famous Hewlett-Packard 12C programmable financial calculator. The real-world version of this calculator has been used by the world's financial professionals for over 40 years and it's still sold today.

Our online version has the same look and feel and offers all the same functionality as the original. You can perform the full range of functions and program it just like the the real one. If you want more information, check out our related article.

3. Balance Sheet Calculator

If you're looking for a quick ready reckoner for Balance Sheet calculations, try our Balance Sheet Calculator. Simply enter your assets and liabilities to calculate totals and your Liquidity Ratio.

4. Profit and Loss Calculator

We often see people using the Profit and Loss Calculator in tandem with the Balance Sheet Calculator. These two calculators work hand in hand to present a picture of a business. Simply enter your income and expenses to calculate totals and profit or loss.

5. Internet Speed Calculator

Our Speed Calculator helps you test your bandwidth and calculates your internet connection speed in megabits per second (Mbps). You can choose a Quick Test or a more detailed test, both of which will separately test download and upload speeds. A Ping Test is also available to calculate your response times in milliseconds (ms).

For best results, we recommend running the tests during off-peak times when nobody else is using your internet connection.

6. Internet Data Usage Calculator

Many of our calculators work together to give you a more detailed analysis of a subject. Here is another example, using the Data Usage Calculator to estimate your Internet data usage on a daily, weekly or monthly basis. Together with the above Speed Calculator, you can get a clearer picture of your Internet activities.

7. Bond Calculator

If you're calculating bond prices and yields, check out our Bond Calculator. This calculator is designed to simplify bond calculations using 5 values - bond price, coupon payment, face value, bond yield and number of periods. You can use any 4 of these values to calculate the missing 5th value.

The Bond Calculator shows the advantages of a task-specific calculator. Many people find it much easier to use a dedicated calculator to perform bond calculations, rather than use a financial calculator with dozens of buttons, functions and programming options that can complicate the process.

8. Domain Name Value Calculator

If you own a domain name, you'll likely want to keep an eye on its value, particularly if you have plans to sell it now or in the future.

Valuing a domain name isn't a precise business because an asset is only worth what somebody is prepared to pay for it. However, by comparing it against recent domain sales and other domain appraisal databases, a reasonable estimate can be achieved. Values are based on factors such as keyword relevance, name length, extension (com is the most valuable) and traffic ranking.

9. Credit Card Calculator

Most people use credit cards, which can be a handy tool or a financial headache if not managed carefully. By using our Credit Card Calculator, you can track up to 10 different credit cards and monitor your credit card usage more effectively.

You can generate an amortization table showing principal and interest payments and balances over various time periods, which helps plan budgeting and payout schedules to minimize costs. By adjusting the numbers, you can compare a range of "what if" scenarios and even print a payment schedule if desired.

10. Graphical Investment Calculator

A calculator can be a very useful tool to solve equations or calculate future values, however that benefit grows significantly when results can be shown graphically. This is a key reason why graphing calculators are so popular.

Our Graphical Investment Calculator uses this principle to show graphically the effects of varying interest rates, time periods and deposits on investment outcomes. You may also find it helpful to check out our Graphical Mortgage Calculator.

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We carefully monitor the popularity of our calculators over time and will update this list whenever the rankings change. In particular, popularity helps us focus future calculator development in the areas our users want most.