# Steady or Turbulant Fluid Flow Pattern Calculator

getcalc.com's **Reynolds Number (Re) Calculator** is an online mechanical engineering tool to estimate the flow patterns (steady or turbulant) of different fluid flow situations in both US customary & metric (SI) units.

## Definition & Formula

**Reynolds Number** often abbreviated as Re, is a dimensionless number used in fluid mechanics represents the flow patterns of different fluid flow situations, usually to estimate if the fluid flow is steady or turbulant.