Rounding Converter

Round numbers using different rounding methods

Rounding Methods Explained

Round (Half Up)

Rounds to nearest; .5 rounds up (2.5 β†’ 3)

Floor

Always rounds toward negative infinity (2.9 β†’ 2, -2.1 β†’ -3)

Ceiling

Always rounds toward positive infinity (2.1 β†’ 3, -2.9 β†’ -2)

Truncate

Removes decimal part, rounds toward zero (2.9 β†’ 2, -2.9 β†’ -2)

πŸ’‘

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Editorial Note

MyCalcBuddy Editorial Team

This page is maintained as an educational calculator reference.

Γ°ΕΈβ€œΕ‘

Formula Source: NIST Guide to SI Units

by National Institute of Standards

Γ°ΕΈβ€β€žLast reviewed: May 2026
Γ’Ε“β€œFormula checks are based on standard references and internal QA review.