Arithmetic

Percent Change (Fill in any two boxes)

Original Amount Inc (e.g. tips) Final    Amount
Percent change % Dec (discount) Change Amount

Rate, Prorate, Proportion
(Leave any one box blank. a:b = c:d)

a (e.g. hours or #days/month) b (e.g. pay or monthly rent)
c (e.g. 1 or days rented) d (e.g. rate or prorated rent)

Factorization

Warning sign     Student Warning: Don't overuse this as a cheating tool in your homework assignments or exams.

Fractions

Warning sign     Student Warning: Don't overuse this as a cheating tool in your homework assignments or exams.

Scientific

deg
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Statistics

From the beginning, fill continuously. For weighted average (e.g. GPA),
the box below is the weight (e.g. credits) of the above (e.g. score).
Click the large text box to make it blank, then click a button.
If you have more than 10 numbers, fill the following area. Separate the items
by space(s). If weighted, the value weight pairs are entered.
Weighted Avg:
Average Sum Min Max
Median Mode Count Deviation
n          r rCn rPn
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Financial

Investment

(Leave any one box blank)
Present
Value (PV)
Year (N) Rate % Future
Value (FV)

Retirement

(Leave only last box blank)
Present
Value (PV)
Annual Invest
Amount
Year (N) Rate % Future
Value (FV)

Loan, Mortgage

(Fill in first 4 boxes, then calculate)
Loan
Amount (PV)
Term
(Months)
Rate % Months
Paid (k)
Payment (PMT) Total
Interest
Principle
Paid
Loan
Balance
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Balloon Loan

(Fill in first 3 boxes:)
Term
(Months)
Rate % Months
Paid
(Then fill any two of the next 3 boxes and calculate:)
Loan
Amount (PV)
Payment (PMT) Loan
Balance
Interest
Paid
Total
Interest
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Geometry

Regular Polygons

Side Tri. Sq. Penta. Hexa. Cirumference Area

Rectangles, Triangles

Length Width Circumference Area
(Side) (Height)


(For right triangle, fill in any 2 of first 3 boxes; for triangle, fill in 3 sides first:)
Leg1 Leg2 Hypothenuse Circumference Area
(Side1) (Side2) (Side3)

Circle, Sphere

Radius
Circumference Area Surface Area Volume

3D Geometry

(Fill in first 3 boxes:)
Length Width Height Surface Area Volume

(Fill in first 2 boxes:)
Radius Height Surface Area Volume
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Unit Conversion

(Fill in any box then click "Calculate")

Distance

Meters Inches Feet Yards Miles

Area

Meter 2 Inch 2 Foot 2 Yard 2
Mile 2 Acres

Weight

Kilograms Ounces Pounds
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Volume

Liters Table
Spoons
Fluid
Ounces
Cups Pints
Quarts Gallons Imperial
Gallons

Temperature

Celsius (0 C o ) Fahrenheit (32 F o )

Time

Days Seconds Minutes Hours
Weeks Months Years

(This is a 2-in-1 date calculator: duration, and date addition / subtraction. If you fill 2 dates in the first 2 rows and click "-" and "Calculate", the last row will be the duration; The first date will auto-filled if you click "Today". The day of week is filled by the computer as well. The 1st date "+"/"-" the number of days in the 2nd row equals a new date in the 3rd row.)
Year Month Day D.Week
=
Unit Operations Top