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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 in x Inches 25.4 50.8 76.2 101.6 127 152.4 177.8 254 1270 2540	0.394	0.788	1.182	1.576	1.97	2.364	2.758	3.94	19.7	39.4
Inches in x mm 0.0393701 0.0787402 0.1181103 0.1574804 0.1968505 0.2362206 0.2755907 0.393701 1.968505 3.93701	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)