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| UNITS, ABBREVIATIONS AND CONVERSION FACTORS |
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|---|---|---|
| To Convert From: | To: | Multiply By: |
| To Convert To: | From: | Divide By: |
LENGTH |
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| miles (mi) | feet (ft) | 5,280 |
| miles (mi) | kilometers (km) | 1.609 |
| feet (ft) | meters (m) | 0.3048 |
| inches (in) | millimeters (mm) | 25.4 |
AREA |
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| miles² (mi²) | acres (ac) | 640 |
| hectares (ha) | meters² (m²) | 10,000 |
| acres (ac) | feet² (ft²) | 43,560 |
| acres (ac) | hectares (ha) | 2.471 |
VOLUME |
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| acre-feet (a-f) | gallons (gal) | 325,851 |
| acre-feet (a-f) | feet³ (ft³) | 43,560 |
| meters³ (m³) | liters (l) | 1,000 |
| meters³ (m³) | feet³ (ft³) | 35.310 |
| feet³ (ft³) | liters (l) | 28.320 |
| feet³ (ft³) | gallons (gal) | 7.481 |
| liters (l) | quarts (qt) | 1.057 |
FLOW |
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| feet³/second (cfs) | liters/minute (lpm) | 1,699 |
| feet³/second (cfs) | gallons/minute (gpm) | 448.831 |
| feet³/second (cfs) | million gallons/day (mgpd) | 0.6464 |
MASS |
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| English tons | pounds (lb) | 2,000 |
| metric tons | kilograms (kg) | 1,000 |
| pounds (lb) | ounces (oz) | 16 |
| kilograms (kg) | pounds (lb) | 2.207 |
| ounces (oz) | grams (g) | 28.349 |
| liters H20 (l) | kilograms (kg) | 1 |
| feet³ H20 (ft³) | pounds (lb) | 62.4 |
PRESSURE |
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| millibars (mb) | Pascals (Pa) | 10 |
| millibars (mb) | pounds/square inch (psi) | 14.5 |
| atmospheres (atm) | millibars (mb) | 0.001 |
| atmospheres (atm) | centimeters Hg (cm) | 11,033.27 |
| atmospheres (atm) | feet H20 (ft) | 33.99 |
CONCENTRATION |
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| parts/million (ppm) | milligrams/liter (mg/l) | 1 |
| parts/million (ppm) | tons/acre-foot | 0.00136 |