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All Calculators

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Browse our growing collection of calculators that you may find useful for solving particular problems:

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Absolute Value

Determine the absolute value of a given positive or negative number.

Coin Flip Probability

Calculate the probability of obtaining a fixed number of heads or tails from a fixed number of tosses. Also calculate the probability of getting at least or at…

Decimal to Percentage

Calculate the equivalent percentage from its associated decimal value.

Fraction to Decimal

Calculate the equivalent decimal value from its associated fraction.

Fraction to Percentage

Calculate the equivalent percentage value from its associated fraction.

Hourly to Salary

Calculate what your hourly pay equates to in terms of an annual salary. Quickly calculate a breakdown of your hourly, daily, weekly, biweekly, monthly, quarter…

Mulch

Calculate how much mulch you need before you make your trip out to the store to buy some. Quickly calculate a breakdown of the various quantities of mulch from…

Percentage

Determine the percentage increase or decrease between two numbers, and numbers as they relate to a percentage and vice versa.

Percentage Change

Calculate the exact percentage increase or percentage decrease from one initial value or number to another final value.

Percentage Difference

Calculate the percentage difference between two nonnegative values greater than or equal to zero.

Percentage Error

Calculate the relative percentage error between a true value and the observed value found in a measurement.

Percentage to Decimal

Calculate the equivalent decimal from its associated percentage value.

Salary to Hourly

Calculate what your annual salary represents in terms of an hourly pay rate. Quickly calculate a breakdown of your hourly, daily, weekly, biweekly, monthly, qu…

Sleeping Time

Quickly determine how many hours you slept last night. Get to terms with how good or bad your sleep was last night.

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