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Number & encoding converter

Scientific Notation Converter

Convert between plain decimal form and coefficient × 10^exponent form without forcing ordinary values through floating-point rounding.

Direction

Scientific notation conversion

Enter values to calculate

Scientific notation

Scientific notation writes a non-zero number as a coefficient with one leading non-zero digit multiplied by a power of ten.

String-based expansion

The converter moves the decimal point using strings, which preserves entered decimal digits better than first coercing a long value to Number.

Display limits

Extremely large expansions are limited so the browser is not asked to generate impractically long strings.

Frequently asked questions

Does conversion happen in my browser?

Yes. These value conversions run in the browser and do not require an account.

Should I verify a critical conversion?

Yes. For engineering, laboratory, medical, financial, legal, or safety-critical work, verify the unit definition and result against an authoritative standard for your context.