Quick rules
- Scientific notation: 1 ≤ |a| < 10, written a × 10ⁿ
- E-notation: aEn (computer-friendly form)
- Engineering notation: exponent is a multiple of 3 — matches SI prefixes (k, M, μ, n, p)
Scientific notation converter
Type any number — decimal, scientific (1.23e4) or engineering — and the calculator returns every common form: standard, scientific (a × 10ⁿ), engineering (×10^(3k)) and e-notation.
Standard decimal
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Scientific (a × 10ⁿ)
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E-notation
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Engineering (3k exponent)
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Order of magnitude
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SI prefix
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