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Free Half-Life Calculator - Decay Calculations
Calculate half-life for radioactive decay, drug elimination, and exponential decay.
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CalculateQuick Answer
Half-life is time for quantity to reduce to half. After n half-lives, (1/2)ⁿ remains. Carbon-14 half-life: 5,730 years.
Key Facts about Half-Life Calculator:
- Half-life = time to reduce by half
- After 1 half-life: 50% remains
- After 2 half-lives: 25% remains
- Carbon-14: 5,730 years
- Exponential decay formula
Why Use Our Half-Life Calculator?
Half-life tools:
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Radioactive Decay
Nuclear calculations.
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Drug Half-Life
Pharmacology.
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Remaining Amount
Calculate what remains.
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Time Calculation
Solve for time.
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Instant
Quick results.
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Data stays secure.
How to Half-Life Calculator in 3 Easy Steps
Calculate decay:
1
Enter Values
Initial amount, half-life.
2
Enter Time
Elapsed time.
3
Get Result
See remaining amount.
Why Use Our Calculator?
Multiple applications
Solve for any variable
Shows formula
Instant results
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Decay
Half-life calculations
Frequently Asked Questions
Everything you need to know about our half-life calculator
What is half-life?
Time for quantity to reduce to half.
Time for a quantity to reduce to half its initial value.
Still have questions? Try the tool yourself!
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