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🐾 Full Dog Age Guide →
📅 Full Date Diff Guide →
💯 Full Percentage Guide →
⏱ Full Reading Time Guide →
💡 Full Tip Calc Guide →
Pet Age Calculator
Convert your pet's age to human years — it's more nuanced than you think.
Human Age Equivalent
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The old "multiply by 7" rule is a myth. This calculator uses updated scientific models based on size and species. 🐾
Date Difference
How many days, weeks, or months between two dates?
Days
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Weeks
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Months
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Years
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Business Days
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excluding weekends
Percentage Calculator
Three ways to crunch percentages — fast.
// What is X% of Y?
Result
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// X is what % of Y?
Result
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// Percentage change
Change
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Reading Time Estimator
Paste any text and find out how long it takes to read.
📝 0 words
Minutes
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Words
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Characters
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Tip Calculator
Split the bill — no awkward math at the table.
Tip
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Total
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Per Person
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