Arcminute ′ vs Minute min: Same Word, Different Quantity
“Minute” can mean an angular subdivision or a unit of time. Arcminutes use the prime sign ′; time minutes use min.
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Unicode, symbols & special charactersPercent % vs Per Mille ‰ vs Per Ten Thousand ‱: What’s the Difference?
Percent, per mille, and per ten thousand use different denominators. Changing %, ‰, or ‱ without changing the number changes the value.
Read guide →Kelvin Sign K vs Letter K: Why Unicode Treats Them as Equivalent
K is a legacy Unicode character that normalizes to ordinary K. The modern SI symbol for kelvin is simply the capital Latin letter K.
Read guide →Angstrom Sign Å vs Å: Why They Look the Same
Å and Å can look identical because Unicode treats them as canonically equivalent. For the angstrom unit, modern text should use the ordinary Å character.
Read guide →Ohm Sign Ω vs Greek Omega Ω: Which Character Should You Use?
Ω has the historical Unicode name OHM SIGN, but modern ohm notation uses Ω, the ordinary Greek capital omega. Unicode treats the two as canonically equivalent.
Read guide →µm vs um: Is “um” the Same as the Micrometre Symbol?
µm and μm use mu-shaped Unicode characters; um is a plain-ASCII fallback. They may mean micrometre in context, but they are not the same text.
Read guide →Micro Sign µ vs Greek Mu μ: What’s the Difference?
µ and μ often look identical, but they are different Unicode characters. The SI prefix micro uses the same mu-shaped symbol, so encoding and measurement rules need…
Read guide →Celsius °C vs Kelvin K: Why Kelvin Has No Degree Sign
Celsius is written °C, while kelvin is written K. The missing degree sign is intentional—and the older form °K belongs to the history of the unit.
Read guide →Degree Fahrenheit ℉ vs °F: Which Form Should You Use?
℉ and °F both mean Fahrenheit, but they are encoded differently. Unicode prefers the ordinary degree-sign-plus-F sequence for new text.
Read guide →Degree Celsius ℃ vs °C: Are They the Same?
℃ and °C usually mean the same Celsius unit, but one is a compatibility character and the other is a degree sign followed by C. Unicode prefers…
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