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The megapascal (MPa) equals one million pascals and is the standard unit for high-pressure applications in structural engineering, materials testing, and hydraulic systems. Concrete strength is rated in megapascals, and steel tensile strength specifications routinely reference this unit. One megapascal equals 10 bar or approximately 145 psi, bridging metric and imperial pressure scales.

The kilopascal (kPa) equals 1,000 pascals and is the most practical unit for everyday pressure measurements in metric countries. Tire pressure, building specifications, and weather reports in Canada, Australia, and Europe commonly use kilopascals. One kilopascal equals 0.01 bar or approximately 0.145 psi, making it a convenient middle ground between scientific and industrial scales.