www .flextral.com A7 A7 T echnical Data Hose Couplings Adapters Accessories Index Quick Couplings Equipment Formulas and Conversion Factors for Fluid Power Use Quantity Metric Units U.S. Customary Units Fr om Metric to U.S. Units Fr om U.S. to Metric Units Ar ea Squar e centimeters (cm 2 ) Squar e inches (ln 2 ) cm 2 x 0.155 = ln 2 ln 2 x 6.452 = cm 2 Length Meters (mt.) Feet (ft.) mt. x 3.281 = ft. ft. x 0.305 = mt. W eight Kilograms (kg.) Pounds (p) kg. x 2.2046 = p p x 0.4535 = kg. V olume Cubic centimeters (cm 3 ) Cubic feet (Cu.Ft.) cm 3 x 0.061= Cu.Ft. Cu.Ft. x 16.39 = cm 3 Litr es (It.) Gallons (gal) It. x 0.2541 = gal gal x 3.7 = 8 It. Power Kilowatts ( Kwh ) Horsepower (HP) HP x 0.7457 = Kwh Kwh x 1.3410 = HP Fr equency Hertz (Hz) Cycles/second (cps) Hz = cps cps = Hz Load Meter kilograms (Kgm.) Feet-pounds (lbf) Kgm. x 7.233 = lbf lb f x 0.1383 = Kgm Pr essur e Bar (Bar) Pounds/sq.inches (P .S.I.) Bar x 14.50 = P .S.I. P .S.I. x 0.0689 = Bar Pascal (Pa) Pounds/sq.inches (P .S.I.) Pa x 0.145 = P .S.I. P .S.I. x 6.8948 = Pa Mega Pascal (MPa) Pounds/sq.inches (P .S.I.) MPa x 145.0377 = P .S.I. P .S.I. x .0068948 = M Pa Atmospher es (Atm.) Pounds/sq.inches (P .S.I.) Atm. x 14.70 = P .S.I. P .S.I. x 0.0680 = Atm. Density Gram/cubic centimeters (gr ./cm 3 ) Pounds/cu.inches (pci) gr ./cm 3 x 0.03613 = pci pci x 27.68 = gr ./cm 3 T emperatur e Degr ees celsius ?C Degr ees fahr enheit ?F ?C = ?F - 32 1.8 ?F = ?C x 1.8 + 32