Decimal number

12.5

Positive
Decimal
1 d.p.
Exact fraction

12.5 is a decimal number equal to 25⁄2. It lies between 12 and 13, and as a percentage it is 1,250%.

Number properties

Absolute value12.5

SignPositive

Integer part12

Fractional part0.5

Decimal places1

Floor12

Ceiling13

Rounded to nearest13

Truncated12

Fractions & ratios

As a fraction25/2exact

Ratio25 : 2

As a percentage1,250%

Reciprocal0.08≈

Arithmetic

Double25

Half6.25

Square156.25

Cube1,953.125

Square root3.5355339059≈

Cube root2.3207944168≈

Negation-12.5

Natural logarithm2.5257286443≈

Logarithm base 101.096910013≈

Representations

Decimal12.5

Scientific notation1.25 × 10^1

Exponential1.25e+1

IEEE 754 binary64 (hex)0x4029000000000000the exact 64-bit pattern stored

IEEE 754 binary32 (hex)0x4148000032-bit single precision, may lose accuracy

Stored as12.5the nearest binary64 value to what you typed

Rounding

To 0 decimal places13

To 1 decimal place12.5

To 2 decimal places12.50

To 3 decimal places12.500

To 4 decimal places12.5000

To 1 significant figure10

To 2 significant figures13

To 3 significant figures12.5

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.