Decimal places
12.3456 to 2 decimal places12.35
Rounding Calculator
Use this free rounding calculator to round numbers to decimal places, significant figures, or place values with nearest, up, down, and truncate methods.
Decimal places Significant figures Place value Multiple methods
Decimal places: 12.3456 to 2 decimal places12.35
- Method
- Nearest
- Precision
- 2 decimal places
- Difference
- 0.0044
Steps
- Start with 12.3456.
- Use decimal places mode with 2 decimal places.
- Apply nearest rounding.
- The rounded value is 12.35.
How to use the Rounding Calculator
- Choose decimal places, significant figures, or place value mode.
- Choose nearest, round up, round down, or truncate.
- Enter the number and precision, then press Round value.
- Review the rounded answer, difference, steps, examples, and recent answers.
What people use it for
Round money, measurements, and everyday decimal values.
Round study answers to a required number of significant figures.
Round whole numbers to tens, hundreds, thousands, or decimal places.
Compare nearest, round up, round down, and truncate methods.
Quick examples
Significant figures
98,765 to 3 significant figures98,800
Place value
1,846 to the nearest hundred1,800
Need the guide or a nearby tool?
Need a slower walkthrough, a related calculator, or the full library? These links keep you close to the task you started.
- How to use the Rounding Calculator See slower examples, input meanings, formula notes, result limits, and mistakes to avoid.
- Calculators Browse related calculators and utilities in the same category.
- Calculator and utility guides Find more guides that use real tool inputs and example numbers.
- All free tools Search every live tool, converter, calculator, AI helper, and browser utility.
Frequently asked questions
Quick answers about decimal places, significant figures, place values, rounding methods, and privacy.
What rounding modes are supported?
The calculator supports decimal places, significant figures, and place value rounding.
How do I round to a place value?
Use place-value mode. Exponent 1 means nearest 10, exponent 2 means nearest 100, exponent 3 means nearest 1,000, and exponent -2 means nearest 0.01.
What do the main Rounding Calculator inputs mean?
The main inputs are the numbers, operation, mode, or known values the calculator needs. Keep units consistent, enter percentages the way the page label shows, and use the examples as a quick check before trusting the answer.
How should I read the Rounding Calculator answer?
Read the headline answer, then check the supporting lines and examples to understand how the calculator got there. If one input changes, rerun the tool and compare the new answer instead of guessing.
What should I double-check before trusting the Rounding Calculator?
Check units, signs, rounding, and the selected mode before copying the answer. If the number feels weird, rerun one of the examples first, then put your own values back in slowly.
What is the difference between nearest, up, down, and truncate?
Nearest rounds to the closest value. Up uses the next higher rounding value, down uses the next lower rounding value, and truncate drops extra digits toward zero.
Can I round negative numbers?
Yes. The calculator accepts negative numbers. For nearest rounding, half values move away from zero.
Why can rounded decimals sometimes look surprising?
Browsers store many decimals in binary floating-point form. The calculator cleans display values, but very precise decimal work can still have normal floating-point limits.
Is my rounding history private?
Yes. Recent rounded values stay only in the current browser tab while you use the page. They are not sent to a server.
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