Online Calculators. 8 types of calculators available

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• All the calculators are free, and the calculations that are performed are followed by step-by-step explanations.
• All the detailed explanations that follow the calculations and the conversions that are performed by our visitors can also be used as an instrument of learning by examples, making the calculators that are listed below not just an instrument of getting to / validating some results.
• The available calculators are:
• 1. Convert / Write out Numbers in Text. 7 available calculators.
• 2. Numbers Percentages. 9 available calculators.
• 3. Sales Tax. 2 available calculators.
• 4. Value Added Tax (VAT). 3 available calculators.
• 5. Compound Interest. Investment Future Value. Simple Interest. 2 available calculators.
• 6. Leap Years. 1 available calculator.
• 7. Basic mathematical operations. 3 available calculators.
• 8. Simple Interest. 4 available calculators.

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1. Convert / Write out Numbers in Words. 7 available calculators:

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1.1. Convert and write out natural & decimal numbers in words, (US) American English

1.2. Write out USD currency amounts in words on a check

1.3. Write out USD currency amounts of money in words

1.4. How to write ordinal numerals in English words

1.5. Convert and write out the date in words, American & British English

1.6. Years to words in American and British English

1.7. Telling (the) time in American and British English

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2. Numbers Percentages. 9 available calculators:

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2.1. Calculate percentages of numbers

2.2. Convert (write) percent values to decimal, integer or whole numbers

2.3. Percentage of what missing number equals the given value?

2.4. What is the missing percentage of the first number that equals the second?

2.5. Convert decimal numbers and fractions to percentages

2.6. Calculate the relative percentage change

2.7. Calculate the relative percentage decrease

2.8. Increase numbers by percentage of value, calculate percentage increase

2.9. Decrease numbers by percentage of value, calculate percentage decrease

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3. Sales Tax. 2 available calculators:

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3.1. Add (Charge) Sales Tax to Listed Prices to Get Tax Inclusive Value

3.2. Reverse Calculate the Sales Tax, Calculate the Amount of Contained Tax

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4. Value Added Tax (VAT). 3 available calculators:

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4.1. Add sales tax or VAT, calculate the tax inclusive value

4.2. Extract VAT, calculate value without the charge (tax free)

4.3. Recalculate value with a different new VAT

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5. Compund Interest, Investement Future Value, Simple Interest. 2 available calculators:

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5.1. Calculator: Compound Interest & Future Investement Value

5.2. Calculator: The Simple Flat Rate Interest

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6. Leap Years. 1 available calculator:

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6.1. Is it a leap year? Last leap year before & next leap year after this year

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7. Basic mathematical operations. 3 available calculators:

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7.1. Adding numbers calculator: calculate the sum and learn how to add

7.2. Subtracting numbers calculator: calculate the difference and learn how to subtract

7.3. Calculator: Rounding off Positive and Negative Numbers to Whole or Decimal Places

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8. Simple Interest. 4 available calculators:

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8.1. Calculate simple flat rate interest on a principal borrowed, lent

8.2. Investment duration for earning a due simple flat rate interest

8.3. Annual simple interest rate to negociate in order to earn a certain interest

8.4. Principal amount to invest in order to get a certain simple flat rate interest

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