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Crop Fertilization Based on North Carolina Soil Tests
Table 4.19  Conversion factors for English and metric units
acre-inches × 102.8 =

acres × 0.004 = km²

acres × 0.405 = ha

bushels (bu) × 1.24 = ft³

bushels (bu) × 4 = pecks

bushels (bu) × 0.046 = yd³

bushels (bu) × 0.352 = hectoliters

bushels (bu) × 35.24 = liters

centigrams (cg) × 0.01 = grams

centiliters (cl) × 0.01 = liters

centimeters (cm) × 0.3937 = inches

centimeters (cm) × 0.01 = meters

centimeters (cm) × 10 = mm

cubic centimeters (cm³) × 0.000035 = ft³

cubic centimeters (cm³) × 0.06 = in.³

cubic centimeters (cm³) × 0.000001 =

cubic centimeters (cm³) × 0.000001 = yd³

cubic centimeters (cm³) × 0.00026 = gallons

cubic centimeters (cm³) × 0.001 = liters

cubic centimeters (cm³) × 0.002 = pints

cubic centimeters (cm³) × 0.001 = quarts

decigrams (dg) × 0.1 = grams

deciliters (dl) × 0.1 = liters

decimeters (dm) × 0.1 = meters

°C + 17.78 × 1.8 = °F

°F –- 32 × 0.5556 = °C

dekagrams (dag) × 10 = grams

dekaliters (dal) × 10 = liters

dekameters (dam) × 10 = meters

fathoms × 6.0 = feet

feet (ft) × 30.48 = cm

feet (ft) × 12 = inches

feet (ft) × 0.3048 = meters

feet (ft) × 0.333 = yd

cubic feet (ft³) × 28,316.85 = cm³

cubic feet (ft³) × 1,728 = in.³

cubic feet (ft³) × 0.028 =

cubic feet (ft³) × 0.037 = yd³

cubic feet (ft³) × 7.48 = gallons

cubic feet (ft³) × 28.29 = liters

cubic feet (ft³) × 0.28 = hectoliters

cubic feet (ft³) × 57.72 = pints

cubic feet (ft³) × 28.86 = quarts

cubic feet (ft³) × 0.8 = bushels

gallons (gal.) × 3,785 = cm³

gallons (gal.) × 0.1337 = ft³

gallons (gal.) × 231 = in.³

gallons (gal.) × 0.0038 =

gallons (gal.) × 0.005 = yd³

gallons (gal.) × 3.79 = liters

gallons (gal.) × 8 = pints

gallons (gal.) × 4 = quarts

gallons (gal.) × 8.3453 = lbs of water

grams (g) × 0.01 = kg

grams (g) × 1,000 = mg

grams (g) × 0.035 = oz

grams (g) × 0.0022 = lbs

grams (g) × 2.471 = acre

hectograms (hg) × 100 = grams

hectoliters (hl) × 100 = liters

hectoliters (hl) × 3.532 = ft³

hectoliters (hl) × 2.838 = bushels

hectometers (hm) × 100 = meters

hundredweight (cwt) × 0.454 = quintals

inches (in.) × 2.54 = cm

inches (thickness) × feet (length) = board feet

cubic inches (in.³) × 16.39 = cm³

cubic inches (in.³) × 0.0006 = ft³

cubic inches (in.³) × 0.00002 =

cubic inches (in.³) × 0.00002 = yd³

cubic inches (in.³) × 0.0043 = gallons

cubic inches (in.³) × 0.0164 = liters

cubic inches (in.³) × 0.0346 = pints

cubic inches (in.³) × 0.0173 = quarts

cubic inches (in.³) × 16.39 = cm³

kilograms (kg) × 2.205 = lbs

kilograms (kg) × 0.001 = tons (short)

kilograms (kg) × 1,000 = grams

kiloliters (kl) × 1,000 = liters

kilometers (km) × 100,000 = cm

kilometers (km) × 3,281 = feet

kilometers (km) × 1,000 = meters

kilometers (km) × 0.62 = miles

kilometers (km) × 1,094 = yd

sq. kilometers (km²) × 247.1 = acre

sq. kilometers (km²) × 0.386 = mi²

liters (l) × 1,000 = cm³

liters (l) × 0.035 = ft³

liters (l) × 61.02 = in.³

liters (l) × 0.001 =

liters (l) × 0.0013 = yd³

liters (l) × 0.26 = gallons

liters (l) × 2.12 = pints

liters (l) × 1.06 = quarts

liters (l) × 0.028 = bushels

meters (m) × 100 = cm

meters (m) × 3.28 = feet

meters (m) × 39.37 = inches

meters (m) × 0.001 = km

meters (m) × 1,000 = mm

meters (m) × 1.094 = yd

cubic meters () × 35.32 = ft³

cubic meters () × 61,030.4 = in.³

cubic meters () × 1.35 = yd³

cubic meters () × 264.2 = gallons

cubic meters () × 1,000 = liters

cubic meters () × 2,113.6 = pints

cubic meters () × 1,056.8 = quarts

cubic meters () × 0.0097 = acre-inches

miles × 160,934 = cm

miles × 5,280 = feet

miles × 1.609 = km

miles × 1,760 = yd

miles per hour (mph) × 44.70 = cm/sec

miles per hour (mph) × 88 = feet/min

miles per hour (mph) × 1.467 = feet/sec

miles per hour (mph) × 1.609 = km/hr

miles per hour (mph) × 0.8696 = knots

miles per hour (mph) × 26.82 = meters/min

milligrams (mg) × 0.001 = grams

milliliters (ml) × 0.001 = liters

millimeters (mm) × 0.1 = cm

millimeters (mm) × 0.04 = inches

ounces (oz) × 0.06 = lbs

ounces (oz) × 28.35 = grams

ounces, fluid (oz) × 2 = tablespoons

ounces, fluid (oz) × 6 = teaspoons

ounces, fluid (oz) × 1.805 = in.³

ounces, fluid (oz) × 0.03 = liters

parts per million (ppm) × 8.345 = lbs/million gallons

pecks × 0.25 = bushels

pounds (lbs) × 16 = oz

pounds (lbs) × 0.0005 = tons (short)

pounds (lbs) × 453.59 = grams

pounds (lbs) × 0.454 = kg

pounds of water × 0.02 = ft³

pounds of water × 34.56 = in.³

pounds of water × 0.12 = gallons

quarts (qt) × 47.75 = in.³

quarts (qt) × 0.95 = liters

quintals × 2.205 = hundredweights

tablespoons (tbsp) × 0.5 = oz

tablespoons (tbsp) × 3 = teaspoons

teaspoons (tsp) × 0.167 = oz

teaspoons (tsp) × 0.33 = tablespoons

tons (long) × 1,016 = kg

tons (long) × 2,240 = lbs

tons (long) × 1.12 = tons (short)

tons (metric) × 1.102 = tons (short)

tons (metric) × 1,000 = kg

tons (metric) × 2,205 = lbs

tons (short) × 2,000 = lbs

tons (short) × 32,000 = oz

tons (short) × 907.18 = kg

tons (short) × 0.89 = tons (long)

tons (short) × 0.91 = tons (metric)

yards (yd) × 0.914 = meters

cubic yards (yd³) × 764,555 = cm³

cubic yards (yd³) × 21.8 = bushels

cubic yards (yd³) × 27 = ft³

cubic yards (yd³) × 46,656 = in³

cubic yards (yd³) × 0.76 =

cubic yards (yd³) × 202 = gallons

cubic yards (yd³) × 764 = liters

cubic yards (yd³) × 1,616 = pints

cubic yards (yd³) × 808 = quarts
Fertilizer Conversion Factors
phosphorus (P) × 2.29 = phosphate (P2O5)

potassium (K) × 1.20 = potash (K2O)
Units-per-Area Conversion Factors
bu/acre × 0.87 = hectoliters/ha

bu/acre (corn) × 0.062 = tons (metric)/ha

bu/acre (grain sorghum) × 0.056 = tons (metric)/ha

bu/acre (soybeans) × 0.067 = tons (metric)/ha

bu/acre (wheat) × 0.067 = tons (metric)/ha

hectoliters/ha × 1.15 = bu/acre

cwt/acre × 1.12 = quintals/ha

kg/ha × 0.89 = lbs/acre

lbs/acre × 1.12 = kg/ha

mg/dm³ × 2.0 = kg/ha

quintals/ha × 0.892 = cwt/acre

tons (metric)/ha × 0.446 = tons (short)/ha

tons (short)/acre × 2.24 = tons (metric)/ha
return icon.Hardy DH, Tucker MR, Stokes CE. 2014. Crop fertilization based on North Carolina soil tests. Raleigh (NC): North Carolina Department of Agriculture and Consumer Services, Agronomic Division. Circular No. 1.

Last Update January 10, 2014

 

 

NCDA&CS Agronomic Services Division, Colleen M. Hudak-Wise, Ph.D., Director
Mailing Address: 1040 Mail Service Center, Raleigh NC 27699-1040
Physical Address: 4300 Reedy Creek Road, Raleigh NC 27607-6465
Phone: (919) 733-2655; FAX: (919) 733-2837