# Units of Measure, Converting

Do You Really Need to Convert?

If you've come here while using the Food Log, perhaps you haven't noticed that its Portion Editor lets you log any food in any measure, metric or English. See Portion Editor.

If you do...

...following are conversion factors for various weights and measures. Click here for a list of abbreviations.

Length

1 mm = 0.1 cm = 0.039 inches

1 cm = 10 mm = 0.394 inches

1 inch = 2.54 cm = 25.4 mm

Area

1 sq cm = 100 sq mm = 0.155 sq in

1 sq in = 6.452 sq cm = 645.2 sq mm

Volume

1 cc = 1 ml = 0.061 cu in = 0.034 fl oz = 0.203 t = 0.068 T = 0.004 c = 0.002 pt = 0.001 qt = 0.001 l = 0.00026 gal

1 ml = 1 cc = 0.061 cu in = 0.034 oz = 0.203 t = 0.068 T = 0.004 c = 0.002 pt = 0.001 qt = 0.001 l = 0.00026 gal

1 t = 4.929 cc = 4.929 ml = 0.301 cu in = 0.167 fl oz = 0.333 T = 0.021 c = 0.010 pt = 0.005 qt = 0.005 l = 0.0013 gal

1 T = 14.79 cc = 14.79 ml = 3 t = 0.902 cu in = 0.500 fl oz = 0.063 c = 0.031 pt = 0.016 qt = 0.015 l = 0.0039 gal

1 cu in = 16.39 cc = 16.39 ml = 0.092 t = 0.277 T = 0.554 fl oz = 0.069 c = 0.035 pt = 0.017 qt = 0.016 l = 0.0043 gal

1 fl oz = 29.57 cc = 29.57 ml = 6 t = 2 T = 1.804 cu in = 0.125 c = 0.063 pt = 0.031 qt = 0.030 l = 0.0078 gal

1 c = 236.6 cc = 236.6 ml = 48 t = 16 T = 14.44 cu in = 8 fl oz = 1/2 pt = 1/4 qt = 0.237 l = 0.0625 gal

1 pt = 473.2 cc = 473.2 ml = 96 t = 32 T = 28.88 cu in = 16 fl oz = 2 c = 1/2 qt = 0.473 l = 1/8 gal

1 qt = 946.3 cc = 946.3 ml = 192 t = 64 T = 57.75 cu in = 32 fl oz = 4 c = 2 pt = 0.946 l = 1/4 gal

1 l = 1000 cc = 1000 ml = 203.0 t = 67.65 T = 61.05 cu in = 33.83 fl oz = 4.228 c = 2.114 pt = 1.057 qt = 0.2643 gal

1 gal = 3785 cc = 3785 ml = 768 t = 256 T = 231.0 cu in = 128 fl oz = 16 c = 8 pt = 4 qt = 3.784 l

Weight

1 g = 0.035 oz = 0.0022 lb = 0.001 kg

1 oz = 28.35 g = 1/16 lb = 0.0284 kg

1 lb = 453.6 g = 16 oz = 0.4536 kg

1 kg = 1000 g = 35.27 oz = 2.205 lb

Volume to Weight (of Water)

1 cc = 1 g = 0.035 oz = 0.0022 lb = 0.001 kg

1 ml = 1 g = 0.035 oz = 0.0022 lb = 0.001 kg

1 t = 4.929 g = 0.173 oz = 0.0108 lb = 0.0049 kg 1 T = 14.79 g = 0.518 oz = 0.0325 lb = 0.0148 kg

1 cu in = 16.39 g = 0.574 oz = 0.0361 lb = 0.0164 kg

1 fl oz = 28.35 g = 1 oz = 1/16 lb = 0.0284 kg

1 c = 236.6 g = 8 oz = 1/2 lb = 0.2366 kg

1 pt = 473.2 g = 16 oz = 1 lb = 0.4732 kg

1 qt = 946.3 g = 32 oz = 2 lb = 0.9460 kg 1 l = 1000 g = 35.27 oz = 2.205 lb = 1 kg

1 gal = 3785 g = 128 oz = 8 lb = 3.7850 kg

Weight to Volume (of Water)

1 g = 1 cc = 1 ml = 0.061 cu in = 0.034 oz = 0.203 t = 0.068 T = 0.004 c = 0.002 pt = 0.001 qt = 0.001 l = 0.00026 gal

1 oz = 29.57 cc = 29.57 ml = 6 t = 2 T = 1.804 cu in = 1 fl oz 0.125 c = 0.063 pt = 0.031 qt = 0.030 l = 0.0078 gal

1 lb = 473.2 cc = 473.2 ml = 96 t = 32 T = 28.88 cu in = 16 fl oz = 2 c = 1 pt = 1/2 qt = 0.473 l = 1/8 gal

1 kg = 1000 cc = 1000 ml = 203.0 t = 67.65 T = 61.05 cu in = 33.83 fl oz = 4.228 c = 2.114 pt = 1.057 qt = 1 l = 0.2643 gal

Rules of Thumb

Most foods have about the same density as water, and will fit the conversion tables above. Foods that float are less dense; those that sink, more dense. Here are some common approximations:

1 cu in cake = 1/10 oz

1 oz cake = 10 cu in

1 cu in bread = 1/10 oz

1 oz bread = 10 cu in

1 T flour = 1/3 oz

1 oz flour = 3 T

1 c flour = 5.3 oz

1 oz flour = 1/5 c

1 lb flour = 3 c

1 t sugar = 1/6 oz

1 T sugar = 1/2 oz

1 oz sugar = 2 T

1 c sugar = 7.5 oz

1 lb sugar = 2-1/8 c

Portion Estimator

Diet Power's website has a Portion Estimator that compares serving sizes to common household objects. Click here to use the Portion Estimator.