🎯 Espresso Ratio Calculator
Enter your dose (dry coffee weight in the portafilter) and desired ratio to calculate your target shot yield (liquid weight out).
How the weight is worked out
The weight class you pick is the mass of one bare disc in grams. The tool multiplies it by the record count and converts to pounds:
grams = records × weight class
pounds = grams / 453.592Twenty heavyweight records at 140 g is 2,800 g, and 2,800 divided by 453.592 is 6.2 lb. Swap to 180 g audiophile pressings and the same twenty records come to 3,600 g, or 7.9 lb.
What the figure leaves out
It counts vinyl only. Everything that travels with the disc has to be added on top, and for a single LP that is usually more than the record itself:
| Item | Typical weight each |
|---|---|
| Inner sleeve | 10-20 g |
| Card jacket | 80-110 g, more for a gatefold |
| Outer poly sleeve | 5-15 g |
| Mailer and stiffeners | 200-300 g per parcel |
So a single 140 g LP that shows as 140 g here leaves the counter closer to 450-500 g. Packed by the box, reckon on roughly 280-320 g per record plus the box itself: fifty 180 g records are 7.9 kg of vinyl, but nearer 16 kg - about 35 lb - as a shipment.
Frequently asked questions
How much does a vinyl record weigh?
The disc alone is 120 g to 200 g depending on the pressing, with 140 g common and 180 g sold as audiophile weight. In its jacket and sleeves a 12-inch LP is usually 250 g to 330 g.
How much does a box of 50 records weigh?
Fifty 180 g records are 9,000 g of vinyl, or 19.8 lb. Add jackets, sleeves and the box and the shipment lands around 35 lb.
Can I send records by Media Mail?
In the US sound recordings qualify, and the limit is 70 lb per package - about 160 bare 180 g records, or well under half that once packed. Media Mail is slower and subject to inspection, so many sellers use it only for cheap copies.