3.5e19 × 2
= 70000000000000000000
The written coefficient and exponent are expanded exactly.
Scientific Notation Calculator
Calculate with scientific-notation input such as 3.5e19. Parse large and tiny decimal values exactly as written, without floating-point conversion.
How this calculation works
Scientific notation uses a coefficient and a power of ten. An input such as 3.5e19 means 3.5 × 10¹⁹. The parser moves the decimal point exactly instead of converting the entire input into a floating-point number.
Inputs and accuracy
Use e or E followed by an integer exponent, including a minus sign for tiny values. Arithmetic still observes input and result limits. The optional scientific result view is rounded to 15 significant digits and is not a replacement for the exact decimal or fraction.
When to use it
Enter large physical counts or very small quantities compactly. Exact parsing preserves the written value but does not imply that a measurement has more experimental precision than supplied.
Worked examples
1.25e-3 × 8
= 0.01
A negative exponent represents a small exact decimal.
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