Calculator with History

Use this calculator for everyday arithmetic, including addition, subtraction, multiplication, division, percentages, and decimals. It works on desktop, tablets, and mobile.

• + add
  • adds two numbers
  • add 2 and 3
  • 2 + 3 =
• - subtract
  • subtracts one number from another
  • subtract 2 from 5
  • 5 - 2 =
• × multiply
  • multiplies two numbers
  • multiply 2 by 3
  • 2 × 3 =
• / divide
  • divides one number by another
  • divide 4 by 2
  • 4 / 2 =
  • note: dividing zero by zero results in "NaN" (not a number), dividing a non-zero number by zero results in "Infinity"
• . decimal
  • puts a decimal point in a number
  • enter 3.2
  • 3 . 2
  • enter 0.1
  • 0 . 1 or . 1
• = equals
  • calculates an equation
  • calculate 3 × 2
  • 3 × 2 =
• ± negate
  • negates a number
  • negate 1 to get -1
  • 1 ±
• ⌫ back
  • deletes last digit of a number
  • delete last digit of 3.25
  • 3 . 2 5 ⌫
  • delete last 2 digits of 3.25
  • 3 . 2 5 ⌫ ⌫
  • delete last 2 digits and decimal of 3.25
  • 3 . 2 5 ⌫ ⌫ ⌫
  • delete 3.25
  • 3 . 2 5 ⌫ ⌫ ⌫ ⌫
• C clear
  • clears entire equation, "resets" calculator
  • clear 3 + 2
  • 3 + 2 C
  • note: history is not cleared
• % percent
  • adds y percent of x to x
  • add 20 percent of 10 to 10
  • 1 0 + 2 0 % =
  • finds y percent of x
  • find 20 percent of 10
  • 1 0 × 2 0 % =
• ( ) parentheses
  • operations in parentheses are given priority
  • multiply 5 by the result of 1 + 2
  • 5 × ( 1 + 2 ) =
• M+Memory plus
  • add number to memory (number displayed at top left corner)
  • add 2 to memory
  • 2 M+
• M-Memory minus
  • subtract number from memory
  • subtract 2 from memory
  • 2 M-
• MRMemory recall
  • recall number in memory
• MCMemory clear
  • clear number in memory