Decimal number
0.66666666
- Positive
- Decimal
- 8 d.p.
0.666667 is a decimal number equal to approximately 2⁄3. It lies between 0 and 1, and as a percentage it is 66.666666%.
Number properties
Fractions & ratios
Arithmetic
Representations
Decimal0.66666666
Scientific notation6.6666666 × 10^-1
Exponential6.6666666e-1
IEEE 754 binary64 (hex)0x3FE5555551C112DAthe exact 64-bit pattern stored
IEEE 754 binary32 (hex)0x3F2AAAAB32-bit single precision, may lose accuracy
Stored as0.66666666the nearest binary64 value to what you typed
Rounding
To 0 decimal places1
To 1 decimal place0.7
To 2 decimal places0.67
To 3 decimal places0.667
To 4 decimal places0.6667
To 1 significant figure0.7
To 2 significant figures0.67
To 3 significant figures0.667
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