# Scientific Notation Calculator > Convert numbers between standard decimal and scientific notation. Page: https://askcalculators.com/calculator/scientific-notation-calculator/ Definition: https://askcalculators.com/calculator/scientific-notation-calculator/definition.json JSON Schema: https://askcalculators.com/calculator/scientific-notation-calculator/schema.json Version: 7.0.0 Maintained by: AskCalculators (software project; not a credentialed reviewer) Qualified review: pending. Automated checks do not establish professional approval. Page status: Live Review status: Pending ## Use Open the calculator page and enter values. Query-string parameters can restore and bookmark a calculation. Example: https://askcalculators.com/calculator/scientific-notation-calculator/?input=12345.6789&mode=to-sci ## Inputs - input: Input; type=text; optional; default=12345.6789 - mode: Mode; type=select; optional; default=to-sci ## Outputs - result: Result; format=text; primary ## Formula A nonzero number is written as coefficient × 10^exponent with 1 ≤ |coefficient| < 10. ## Rules - Empty optional inputs are undefined, not zero. - Hidden conditional inputs are ignored. - Do not invent missing required inputs.