Recognised as Decimal number

0.225

Positive
Decimal
3 d.p.
Exact fraction
3 s.f.

0.225 is a decimal number equal to 9⁄40. It lies between 0 and 1, and as a percentage it is 22.5%.

Number properties

Absolute value0.225

SignPositive

Integer part0

Fractional part0.225

Decimal places3

Floor0

Ceiling1

Rounded to nearest0

Truncated0

Fractions & ratios

As a fraction9/40exact

Ratio9 : 40

As a percentage22.5%

Reciprocal4.4444444444≈

Arithmetic

Double0.45

Half0.1125

Square0.050625

Cube0.011391

Square root0.474341649≈

Cube root0.6082201996≈

Negation-0.225

Natural logarithm-1.4916548768≈

Logarithm base 10-0.6478174819≈

Representations

Decimal0.225

Scientific notation2.25 × 10^-1

Exponential2.25e-1

IEEE 754 binary64 (hex)0x3FCCCCCCCCCCCCCDthe exact 64-bit pattern stored

IEEE 754 binary32 (hex)0x3E66666632-bit single precision, may lose accuracy

Stored as0.225the nearest binary64 value to what you typed

Rounding & precision

Significant figures as written3counted from the digits as typed, not from the value

To 0 decimal places0

To 1 decimal place0.2

To 2 decimal places0.23

To 3 decimal places0.225

To 4 decimal places0.2250

To 1 significant figure0.2

To 2 significant figures0.23

To 3 significant figures0.225

To 4 significant figures0.2250

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