Standard and Metric System Conversion Charts - Metal Sign

$14.99 USD

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Keep the everyday standard-to-metric conversions right where you need them. This rust-proof aluminum sign prints the most-used length, weight, volume, and temperature conversions in one clear, at-a-glance chart — perfect for the garage, workshop, kitchen, classroom, or machine shop.

Standard & Metric Conversion Chart

Length

1 inch	2.54 cm (25.4 mm)
1 foot	30.48 cm
1 yard	0.91 m
1 mile	1.61 km
1 mm	0.039 in
1 cm	0.39 in
1 meter	3.28 ft
1 km	0.62 mile

Weight

1 ounce	28.35 g
1 pound	0.45 kg (453.6 g)
1 gram	0.035 oz
1 kilogram	2.20 lb

Volume

1 fluid ounce	29.57 mL
1 cup	236.6 mL
1 quart	0.95 L
1 gallon	3.79 L
1 liter	1.06 qt (0.26 gal)

Temperature

°F to °C: subtract 32, then multiply by 5/9
°C to °F: multiply by 9/5, then add 32
Quick marks: 32°F = 0°C (freezing) · 68°F = 20°C (room temp) · 212°F = 100°C (boiling)

Frequently asked questions

How do I convert metric to standard? Use the chart above — for length, multiply centimeters by 0.39 to get inches, or millimeters by 0.039. This sign keeps the common length, weight, volume, and temperature conversions in one place.

What's on the standard and metric conversion sign? The most-used conversions between the US standard (imperial) and metric systems — inches, feet, and miles; ounces and pounds; cups, quarts, and gallons; plus the Fahrenheit-to-Celsius formula.

Where does it work best? Anywhere you switch between systems — home garages and workshops, kitchens, classrooms, machine shops, and maker spaces.

Designed, printed, and hand-cut in our family-owned shop in Tomball, Texas. It hangs in seconds with two pre-drilled holes.

Working with tools? See our SAE to Metric conversion chart for wrench and socket sizes.

Specifications