关于本计算器
Remaining quantity from start amount, half-life and elapsed time.
衰变后剩余量。
输入计算参数
计算结果摘要
Remaining quantity from start amount, half-life and elapsed time.
Start × 0.5^(time ÷ half-life).
Any — time and half-life just share them.
Mathematically it halves forever; practically it vanishes.