“Standard form” means scientific notation in the UK and many other countries, while in the US it often means the ordinary way of writing a number. This calculator covers both readings: a × 10ⁿ and expanded place-value form.
How to use the Standard Form Calculator
- Number
- Have the calculator use
- Show the expanded form in
Everything is calculated in your browser, so results appear instantly and nothing you type is sent to a server.
How it works
Choose scientific notation or expanded form. Numbers are processed exactly as typed, so no digits are lost.
Formula
Standard form (UK): a × 10ⁿ with 1 ≤ a < 10
Expanded form: sum of place values
Worked example
Inputs — Number: 4,005,000; Have the calculator use: Scientific notation (a × 10ⁿ).
Results — Result = 4.005 × 10⁶; Alternative form = 4.005e6.
Key terms
- Standard form
- a × 10ⁿ with 1 ≤ a < 10 (UK usage).
Frequently asked questions
What is 4,005,000 in standard form?
4.005 × 10⁶.
What is 0.0032 in standard form?
3.2 × 10⁻³.
Is standard form the same as scientific notation?
In the UK, yes. In the US, "standard form" usually means the normal written number.
What is standard form of a linear equation?
Ax + By = C – a different use of the term.