LME to DME Extract Conversion Calculator
Liquid malt extract and dry malt extract are not a one-for-one swap by weight. DME contains less water and supplies more fermentable material per kilogram or pound, so an uncorrected substitution can change your original gravity, alcohol level, body and balance.
Enter the extract amount, select your measurement system and use the calculated equivalent to preserve approximately the same gravity contribution. Batch size is used only for the estimated original gravity figure.
Convert LME to DME
Required DME
Estimated extract OG
Based on 37 PPG for LME and 45 PPG for DME.
Convert DME to LME
Required LME
Estimated extract OG
Based on 45 PPG for DME and 37 PPG for LME.
How to Convert Liquid and Dry Malt Extract Correctly
The conversion is based on gravity potential. Liquid malt extract contains a meaningful amount of water, while dry malt extract has had almost all of that moisture removed. The dry product therefore contributes more gravity points for the same weight.
This calculator uses typical values of 37 points per pound per gallon for LME and 45 points per pound per gallon for DME. Those assumptions are suitable for practical recipe substitutions, although the exact potential can vary by brand, colour and product formulation.
What the calculator is doing- LME potential: The tool assumes liquid malt extract contributes approximately 37 PPG.
- DME potential: The tool assumes dry malt extract contributes approximately 45 PPG.
- Equivalent fermentables: It calculates the replacement weight needed to preserve the source extract's gravity contribution.
- Estimated original gravity: It divides the extract's gravity points by the entered batch volume. Other sugars, grains and extracts in the recipe are not included.
Useful rule of thumb: One pound or kilogram of LME is roughly equivalent to 0.82 pounds or kilograms of DME. One pound or kilogram of DME is roughly equivalent to 1.22 pounds or kilograms of LME.
DME generally stores more predictably when kept sealed and dry. LME can darken and develop stale or overly cooked flavours more quickly, especially when it is warm, old or exposed to oxygen. Check the production date, best-before guidance and storage history rather than relying on age alone.
For the most exact conversion, use the manufacturer's listed gravity potential when it is available. A very pale DME from one supplier may perform slightly differently from a dark LME produced by another.
Better hot-side handling- Weigh the extract: Use a digital scale. Cups, scoops and visual estimates are unreliable because syrups and powders pack differently.
- Pause the heat: Remove the kettle from direct heat or switch the element off before adding extract. Stir thoroughly before heating again to prevent scorching.
- Add DME gradually: DME absorbs moisture rapidly and can form stubborn clumps. Sprinkle it in while stirring rather than tipping in the full amount at once.
- Rinse LME containers: Add a little warm wort or water to the emptied can or pouch, swirl carefully and return the rinse to the kettle so the measured extract reaches the beer.
- Consider a late addition: Holding back part of the extract until the final 10 to 15 minutes can limit wort darkening and excessive Maillard development, especially in concentrated boils.
- Keep packaging clean: Wipe the outside and opening area before pouring so dust, label fragments and storage debris do not fall into the kettle.
An LME-to-DME substitution should preserve fermentable potential, but it may still alter colour, flavour and fermentability. Match the extract style as closely as possible, such as pale for pale or wheat for wheat, and confirm whether the product includes specialty malts or adjuncts.
The calculator gives a strong practical estimate for homebrew recipe adjustments. Treat the supplier's published specification as the final authority when precision is critical.
