# Common Sizes *Assumes an American context.* | Object | Standard | Metric | | ---------------------------- | :-----------------: | :------------------------: | | common die (d6) | ~0.63" | 16mm | | coin — dime | 0.71" | ~17.9mm | | coin — penny | 0.75" | ~19.1mm | | coin — nickel | 0.84" | ~21.2mm | | stamp | 0.87" × 0.98" | ~22.1mm × ~24.9mm | | coin — quarter | 0.96" dia | ~24.3mm | | card — business | 2" × 3.5" | ~50.8mm × ~88.9mm | | card — Magic: The Gathering | ~2.48" × ~3.46" | 63mm × 88mm | | card — playing, baseball | 2.5" × 3.5" | ~63.5mm × ~88.9mm | | dollar bill | 2.61" × 6.14" | ~66.3mm × ~156mm | | Post-it note | 3" × 3" | ~76.2mm × ~76.2mm | | card — index | 3" × 5" | ~76.2mm × ~127mm | | envelope (#10 aka full size) | 4.125" × 9.5" | ~104.8mm × ~241.3mm | | paperback aka "Pocket Book" | 4.25" × 6.87" | ~108mm x ~174.5mm | | CD / DVD / Blu-ray | ~4.7" | 120mm | | comic book (standard floppy) | 6.625" × 10.25" | ~168.3mm x ~260.4mm | | paper sheet | 8.5" × 11" | ~215.9mm x ~279.4mm | | paper sheet — legal | 8.5" × 14" | ~215.9 x ~355.6mm | | average female — foot | 9.7" (size 8.5) | ~246mm | | average male — foot | 10.75" (size 10.5) | ~273mm | | folding table | 2.5' × 6' | ~0.76m x ~1.83m | | door — interior | 30" × 80" | ~0.76m x ~2.03m | | door — exterior | 36" × 80" | ~0.91m x ~2.03m | | mattress — twin | 38" × 75" | ~0.97m x ~1.91m | | mattress — full | 54" × 75" | ~1.37m x ~1.91m | | mattress — queen | 60" × 80" | ~1.52m x ~2.03m | | mattress — king | 76" × 80" | ~1.93m x ~2.03m | | average female — height | 5'3.5" | ~1.61m | | average male — height | 5'9" | ~1.75m | | shipping container | 8' × 20' or 40' | ~2.4m x ~6.1m or ~12.2m | | street lane | 12' | ~3.658m | | Honda Accord | 6'1" × 16'4" | ~1.86m × ~4.97m | | basketball court | 50' × 94' + 10' rim | ~15.24m x ~28.65m + ~3.05m | | Object | Thickness | In Mils | | :--------------------: | --------: | ------: | | - | 0.001" | 1 mil | | laminator sheet, thin | 0.003" | 3 mil | | human hair | 0.004" | 4 mil | | 24lb paper | 0.0045" | 4.5 mil | | laminator sheet, thick | 0.005" | 5 mil | | credit card | 0.030" | 30 mil |