Recognised as Decimal number

0.8125

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

0.8125 is a decimal number equal to 13⁄16. It lies between 0 and 1, and as a percentage it is 81.25%.

Number properties

Absolute value0.8125

SignPositive

Integer part0

Fractional part0.8125

Decimal places4

Floor0

Ceiling1

Rounded to nearest1

Truncated0

Fractions & ratios

As a fraction13/16exact

Ratio13 : 16

As a percentage81.25%

Reciprocal1.2307692308≈

Arithmetic

Double1.625

Half0.40625

Square0.660156

Cube0.536377

Square root0.9013878189≈

Cube root0.9331277892≈

Negation-0.8125

Natural logarithm-0.2076393648≈

Logarithm base 10-0.0901766303≈

Representations

Decimal0.8125

Scientific notation8.125 × 10^-1

Exponential8.125e-1

IEEE 754 binary64 (hex)0x3FEA000000000000the exact 64-bit pattern stored

IEEE 754 binary32 (hex)0x3F50000032-bit single precision, may lose accuracy

Stored as0.8125the nearest binary64 value to what you typed

Rounding & precision

Significant figures as written4counted from the digits as typed, not from the value

To 0 decimal places1

To 1 decimal place0.8

To 2 decimal places0.81

To 3 decimal places0.813

To 4 decimal places0.8125

To 1 significant figure0.8

To 2 significant figures0.81

To 3 significant figures0.813

To 4 significant figures0.8125

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