Convert Nanoliter (nL) to Dram (dr) instantly.
About these units
Nanoliter (nL)
A nanoliter equals 10⁻⁹ liters and is commonly used in molecular biology, PCR (polymerase chain reaction), and analytical chemistry. Reaction volumes in high-throughput screening and micro-assays are frequently in nanoliters to conserve expensive reagents. In environmental science, trace samples of pollutants or micro-droplets in aerosols may be measured in nanoliters. Nanoliter volumes also arise in precision drug delivery systems and biomedical implants. The nanoliter represents a critical compromise between practical handling and microscopic precision, making it a cornerstone of modern microfluidic research.
Dram (dr)
The fluid dram is a small historical unit equal to 1/8 of a US fluid ounce or 3.6967 mL (US), with slightly different imperial values. It originated in apothecaries and early pharmaceutical texts, where drams measured potent liquid medicines, tinctures, and extracts. In daily life, drams appeared in old cocktail recipes, medicinal syrups, and household remedies. However, the inconsistency between US and UK drams, along with the rise of the metric system, pushed it out of modern use. Today, the dram survives mostly in whiskey culture—where a "dram" informally means a small pour, not a precise measurement—and in historical studies of medicine.