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Standards and Sizes

The standard tripod screw size for cameras and accessories is commonly known as the 1/4"-20 thread. This means that the screw has a diameter of 1/4 inch and a pitch of 20 threads per inch.

Conversions

Length (Distance)

• Inches(in) x 25.4 = Millimeters x 0.0394 = Inches (in)
• Feet (ft) x 0.305 = Meters (m) x 3.281 = Feet
• Miles x 1.609 = Kilometers (km) x 0.621 = Miles

Feet = Meters 3.28084 6.56168 9.84252 13.12336 16.4042 19.68504 22.96588 32.8084 164.042 328.084 Feet = Meters 0.3048 0.6096 0.9144 1.2192 1.524 1.8288 2.1336 3.048 15.24 30.48 0 0 0 0 0 0 0 0 0 mm Inches 25.4 50.8 76.2 101.6 127 152.4 177.8 254 1270 2540 inches mm 0.0393701 0.0787402 0.1181103 0.1574804 0.1968505 0.2362206 0.2755907 0.393701 1.968505 3.93701 0 0 0 0 0 0 0 0 0 Yards to Meters 0.9144 1.8288 2.7432 3.6576 4.572 5.4864 6.4008 9.144 45.72 91.44 Meters to Yards 1.09361 2.18722 3.28083 4.37444 5.46805 6.56166 7.65527 10.9361 54.6805 109.361 0 0 0 0 0 0 0 0 0 km - mile 0.621371 1.242742 1.864113 2.485484 3.106855 3.728226 4.349597 6.21371 31.06855 62.1371 Mile - KM 1.60934 3.21868 4.82802 6.43736 8.0467 9.65604 11.26538 16.0934 80.467 160.934 0 0 0 0 0 0 0 0 0 Naut Mile - KM 1.852 3.704 5.556 7.408 9.26 11.112 12.964 18.52 92.6 185.2 KM - Naut Mile 0.539957 1.079914 1.619871 2.159828 2.699785 3.239742 3.779699 5.39957 26.99785 53.9957

Base quantity	1	2	3	4	5	6	7	10	50	100
Km in x Miles *	0.621371	1.242742	1.864113	2.485484	3.106855	3.728226	4.349597	6.21371	31.06855	62.1371
Miles in x Km *	1.60934	3.21868	4.82802	6.43736	8.0467	9.65604	11.26538	16.0934	80.467	160.934
Yards in x Meters *	0.9144	1.8288	2.7432	3.6576	4.572	5.4864	6.4008	9.144	45.72	91.44
Meters in x Yards *	1.09361	2.18722	3.28083	4.37444	5.46805	6.56166	7.65527	10.9361	54.6805	109.361
Feet in x Meters *	3.28084	6.56168	9.84252	13.12336	16.4042	19.68504	22.96588	32.8084	164.042	328.084
Meters to Feet	1.61	3.22	4.83	6.44	8.05	9.66	11.27	16.10	80.5	161.0
mm to Inches	0.394	0.788	1.182	1.576	1.97	2.364	2.758	3.94	19.7	39.4
Inches to mm	1.61	3.22	4.83	6.44	8.05	9.66	11.27	16.10	80.5	161.0

Volume (Capacity)

• Cubic Inches (CU in) x 16.387 = Cubic Centemeters (cc) x 0.061 = Cubic Inches (CU in)
• Imperial Pints (imp Pt) x 0.568 = Litres (l) x 1.76 = Imperial Pints (imp Pt)
• Imperial Quarts (Imp qt) x 1.137 = Litres (l) x 0.88 = Imperial Quarts (Imp qt)
• Imperial Quarts (Imp qt) x 1.201 = US Quarts (US qt) x 0.833 = Imperial Quarts (Imp qt)
• US Quarts (Imp qt) x 0.946 = Litres (l) x 1.057 = US Quarts (Imp qt)
• Imperial Gallons (Imp gal) x 4.546 = Litres (l) x .22 = Imperial Gallons (Imp gal)
• Imperial Gallons (Imp gal) x 1.201 = US Gallons (US Gal) x 0.833= Imperial Gallons (Imp gal)
• US Gallons (US Gal) x 3.785 = Litres (l) x 0.264 = US Gallons (US Gal)

Mass (weight)

• Ounces (oz) x 28.35 = Grams (g) x 0.035 = Ounces (oz)
• Pounds (lb) x 0.454 = Kilograms (kg) x 2.205 = Pounds (lb)