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Symbol | Definition |
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≡ | exactly equal |
≈ | approximately equal to |
= | equal to |
digits | indicates that digits repeat infinitely (e.g. 8.294 369 corresponds to 8.294 369 369 369 369 …) |
The official imperial cup was half an imperial pint or 10 imperial fluid ounces. It is no longer in common use, but appears in older recipe books.
1 imperial cup | = | 0.5 | imperial pints |
= | 2 | imperial gills | |
= | 10 | imperial fluid ounces | |
≈ | 284 | millilitres | |
≈ | 19 | international tablespoons | |
≈ | 14.25 | Australian tablespoons | |
≈ | 1.20 | U.S. customary cups | |
≈ | 9.61 | U.S. customary fluid ounces |
The board-foot is a specialized unit of measure for the volume of lumber in the United States and Canada. It is the volume of a one-foot length of a board one foot wide and one inch thick.
Board-foot can be abbreviated FBM (for "foot, board measure"), BDFT, or BF. Thousand board-feet can be abbreviated as MFBM, MBFT, or MBF. Similarly, million board-feet can be abbreviated as MMFBM, MMBFT, or MMBF.