Recognised as Decimal number

-0.55

Negative
Decimal
2 d.p.
Exact fraction
2 s.f.

-0.55 is a decimal number equal to -11⁄20. It lies between -1 and 0, and as a percentage it is -55%.

Number properties

Absolute value0.55

SignNegative

Integer part0

Fractional part0.55

Decimal places2

Floor-1

Ceiling0

Rounded to nearest-1

Truncated0

Fractions & ratios

As a fraction-11/20exact

Ratio-11 : 20

As a percentage-55%

Reciprocal-1.8181818182≈

Arithmetic

Double-1.1

Half-0.275

Square0.3025

Cube-0.166375

Cube root-0.8193212706≈

Negation0.55

Representations

Decimal-0.55

Scientific notation-5.5 × 10^-1

Exponential-5.5e-1

IEEE 754 binary64 (hex)0xBFE199999999999Athe exact 64-bit pattern stored

IEEE 754 binary32 (hex)0xBF0CCCCD32-bit single precision, may lose accuracy

Stored as-0.55the nearest binary64 value to what you typed

Rounding & precision

Significant figures as written2counted from the digits as typed, not from the value

To 0 decimal places-1

To 1 decimal place-0.6

To 2 decimal places-0.55

To 3 decimal places-0.550

To 4 decimal places-0.5500

To 1 significant figure-0.6

To 2 significant figures-0.55

To 3 significant figures-0.550

To 4 significant figures-0.5500

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