Conversions01
Scientific Notation Converter
Move between a standard decimal and normalized scientific notation.
Open the toolSCIENTIFIC NOTATION / YOUR WORKING DESK
Big numbers.
Clearer thinking.
From a tiny decimal to a towering power. Six free tools that keep the steps beside the answer—so the method never disappears.
Free · No sign-up · No stored inputs · Your browser does the work
A LITTLE LESS GUESSWORK
What would you like to work out?
One question. Clear steps. A result you can check.
6 of 6 tools shown
Arithmetic02
Scientific Notation Calculator
Add, subtract, multiply or divide with the working kept visible.
Open the toolArithmetic03
Exponent Calculator
Explore integer powers, reciprocals and negative-base signs.
Open the toolPrecision & scale04
Significant Figures Counter and Rounding Tool
Count the digits as written and make rounding decisions explicit.
Open the toolConversions05
Engineering Notation Converter
Keep powers in multiples of three, with exact decimal steps.
Open the toolPrecision & scale06
Metric Prefix Converter
Change decimal SI prefixes without changing the quantity.
Open the toolLESS BLACK BOX. MORE WORKING.
See the steps.
Keep the reasoning.
Exact fractions where they matter. Rounding where it is named. A clear difference between a number’s value and the precision of its writing.
Explore significant figures ↗- 01 / CHOOSE
Start with your question
- 02 / ENTER
Use the notation you mean
- 03 / REVIEW
Read the method and limits
- 04 / KEEP
Download or print the working
Study support.
Not a shortcut past understanding.
These tools show how the answer was built. Check your course’s notation, rounding and significant-figure conventions. No result replaces a teacher, textbook or the judgement needed for a real measurement.
Read the calculation limits ↗