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Coding tips and build notes by Mahir Faysal, a student web developer in Bangladesh: tested Python, HTML, CSS, JavaScript and PHP tutorials, plus notes from my Next.js and Gemini projects. Sample posts are marked and drafts stay in the admin area.
A nautical mile is exactly 1,852 metres, which is about 1.15 ordinary (statute) miles, 1.852 kilometres or 6,076 feet. It's longer than a land mile because it was designed to match one minute of latitude on the Earth's surface, which makes distances easy to read off a chart.
There are 8 US fluid ounces in a US cup, which is about 236.6 millilitres. But that only applies to liquids measured in US units.
To convert feet and inches to centimetres, multiply the feet by 30.48, multiply the inches by 2.54, and add the two together. For example, 5 feet 7 inches is (5 × 30.48) + (7 × 2.54) = 152.4 + 17.78 = 170.18 cm, which rounds to 170 cm.
To convert stones and pounds to kilograms, turn everything into pounds first (stones × 14 + pounds), then multiply by 0.45359237. For example, 11 stone 7 pounds is (11 × 14 + 7) = 161 lb, and 161 × 0.45359237 = 73.0 kg. One stone is about 6.35 kg.
To convert Fahrenheit to Celsius, subtract 32 and multiply by 5/9: °C = (°F − 32) × 5 ÷ 9. For example, 68°F is (68 − 32) × 5 ÷ 9 = 20°C. For a quick estimate in your head, subtract 30 and halve the result.
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