What is standard form in maths?

Standard form writes a number as a × 10^n where a is at least 1 and less than 10.

How do I convert a normal number to standard form?

Move the decimal point until one non-zero digit is left before it, then count the moves to get the power of 10.

How do I convert standard form to a normal number?

Use the power of 10 to move the decimal point right for positive powers and left for negative powers.

Standard Form Calculator – Scientific Notation & Normal Numbers

Use this standard form calculator to convert ordinary numbers into scientific notation, scientific notation into normal numbers and e notation into standard form for maths, science and engineering.

STD FORM (1/8)

STANDARD FORM CALCULATOR

Convert normal numbers, scientific notation and e notation.

NUMBER

e NOTE

RESULT

—

Standard form uses a × 10^n where 1 ≤ a < 10.

Use for exam maths, science, engineering, big numbers and tiny values.

STD FORM (2/8)

QUICK PRESETS

Tap a common standard form example.

300000 → STANDARD FORM001 0.0042 → STANDARD FORM002 3e8 → NORMAL003 1.6e-19 → NORMAL004 6.02e23 → NORMAL005 1e-9 → NORMAL006 7500000 → STANDARD FORM007 0.000056 → STANDARD FORM008

USES

powers of ten • science • exams

STD FORM (3/8)

WHAT STANDARD FORM MEANS

Scientific notation for large and small values.

DEFINITION

Standard form writes a number as a × 10^n. The first number is at least 1 and less than 10.

WHAT THIS PAGE DOES

It converts ordinary numbers to standard form, scientific notation to normal numbers, and e notation such as 4.2e-3.

STD FORM (4/8)

NORMAL → STANDARD FORM

Move the decimal point and count places.

HOW IT WORKS

Move the decimal point until one non-zero digit is before it. The number of moves becomes the power of ten.

300000

3 × 10^5

7500000

7.5 × 10^6

0.0042

4.2 × 10^-3

0.000056

5.6 × 10^-5

STD FORM (5/8)

STANDARD FORM → NORMAL

Positive powers move right, negative powers left.

POSITIVE POWERS

Positive powers make larger numbers. For example, 3 × 10^8 = 300000000.

NEGATIVE POWERS

Negative powers make smaller decimals. For example, 4.2e-3 = 0.0042.

scientific notation to decimal

STD FORM (6/8)

SCIENCE & ENGINEERING USES

Useful for very big and very small numbers.

3e8

speed of light style values

6.02e23

chemistry constants

1.6e-19

tiny physics values

1e-9

nano-scale values

COMMON SEARCHES

Standard form calculator, scientific notation calculator, e notation to decimal, and normal number to standard form.

STD FORM (7/8)

RELATED TOOLS

Parent hub, sibling pages and nearby tools.

STD FORM (8/8)

SUMMARY + RETURN

Standard form calculator page 237.

KEYWORDS COVERED

standard form calculator, scientific notation calculator, e notation to decimal, normal number to standard form.

LOOP

NEXT>>> RETURNS TO PAGE 1

Standard form calculator for scientific notation and normal numbers