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Free Rounding Calculator

Round numbers to decimal places, significant figures, or nearest value.

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Quick Answer

Rounding rule: 5+ round up, <5 round down. 3.746 → 2 decimals = 3.75. Bankers rounding: 5 rounds to even.

Key Facts about Rounding Calculator:

  • 5 or more: round up
  • Less than 5: round down
  • Bankers rounding: 5 to even
  • 3.746 → 3.75 (2 decimals)
  • Sig figs count from first non-zero

Why Use Our Rounding Calculator?

Rounding tools:

🔢

Decimal Places

Round to decimals.

📊

Significant Figures

Sig fig rounding.

📈

Nearest Value

Round to nearest 10, 100.

📐

Multiple Methods

Standard, bankers.

Instant

Quick results.

🔒

Private

Data stays secure.

How to Rounding Calculator in 3 Easy Steps

Round numbers:

1

Enter Number

Number to round.

2

Select Precision

Decimals or sig figs.

3

Get Result

See rounded value.

Why Use Our Calculator?

Multiple methods

Any precision

Shows work

Instant results

🔢
Rounding
Precise rounding

Common Use Cases for Rounding Calculator

Perfect for:

Science

Significant figures.

Round

Finance

Currency rounding.

Calculate

Estimation

Quick estimates.

Estimate

Frequently Asked Questions

Everything you need to know about our rounding calculator

What is bankers rounding?

Round 5 to nearest even number.

When digit is exactly 5, round to nearest even number. Reduces bias over many calculations.

Still have questions? Try the tool yourself!

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