Lasts to drops (US)

This free conversion calculator will convert lasts to drops (us), i.e. last to gtt. Correct conversion between different measurement scales.

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The formula is $$$V_{\text{gtt}} = \frac{5586235392000000}{157725491} V_{\text{last}}$$$, where $$$V_{\text{last}} = 15$$$.

Therefore, $$$V_{\text{gtt}} = \frac{83793530880000000}{157725491}$$$.

Answer: $$$15 \text{last} = \frac{83793530880000000}{157725491} \text{gtt}\approx 5.31261816645732 \cdot 10^{8} \text{gtt}.$$$