How Many Cups of Coffee from 1kg of Beans? Quick Calculator & Brewing Chart
If you buy coffee beans in bulk, the first question is usually practical: how many cups will this bag actually deliver? The honest answer is between 40 and 100 cups per kilogram, depending on your brew method, serving size, and how strong you like your coffee. The quick math: a standard 1:16 coffee-to-water ratio uses about 10 grams of coffee per 150 ml cup, which gives you roughly 100 cups per kilo. But most home brewers use 15–20 grams per cup, which drops that number to 50–66 cups. This guide walks you through the exact numbers for every common brewing method, plus the failure points that silently shrink your yield.
The Only Formula You Need
Before you can plan your coffee supply, you need to know your personal usage rate. The formula is straightforward:
Total cups = 1000 grams ÷ grams of coffee used per cup
That’s the entire calculation. The variable is the grams per cup, which changes with your brewing method and taste preferences.
Here’s a practical example: if you use 18 grams for a double shot of espresso, you get 55 shots from a kilo (1000 ÷ 18 = 55.5). If you use 20 grams for a pour-over mug, you get exactly 50 cups. If you use 10 grams for a lighter drip coffee, you get 100 cups.
To make this concrete for your own situation: weigh your coffee for one brew session, then divide 1000 by that number. That’s your personal yield per kilo. Keep that number handy when you’re deciding whether to buy a 1kg bag or a smaller size.
Cups Per Kilogram by Brewing Method
Different brewing methods use different coffee doses, which changes the yield dramatically. Here’s the breakdown:
| Brew Method | Typical Dose per Cup | Cups per 1kg |
|---|---|---|
| Espresso (single shot) | 7–9 g | 111–143 |
| Espresso (double shot) | 14–18 g | 55–71 |
| Moka pot | 15–20 g | 50–66 |
| Drip coffee maker | 10–15 g | 66–100 |
| Pour-over (V60, Chemex) | 15–20 g | 50–66 |
| French press | 15–20 g | 50–66 |
| Cold brew concentrate | 20–25 g | 40–50 |
| Aeropress | 14–18 g | 55–71 |
The spread matters. A single-shot espresso drinker gets three times more cups from the same bag than a cold brew lover. This is why the “how many cups” question never has a single answer — it depends entirely on your equipment and routine.
Espresso Machines: Shots Per Kilogram
If you own an espresso machine, your yield depends on your portafilter basket size and whether you pull single or double shots.
Double shot standard. Most home espresso machines use 18 grams for a double shot. At that dose, you get 55 doubles per kilo. If you pull two doubles per day (for you and a partner), a kilo lasts about 27 days.
Single shot consideration. Some machines have single baskets around 8–9 grams. At 9 grams, you get 111 singles per kilo. But here’s the practical caveat: single shots are harder to pull consistently because the puck is thinner and more prone to channeling. Most owners end up using the double basket even when brewing for one person.
The grinder factor. Your grinder retention matters more than you might think. If your grinder holds back 1–2 grams of coffee each time you switch beans or adjust settings, that’s lost yield. A gram of retention per shot adds up to 55 grams per kilo — roughly three shots you paid for but never brewed. If you’re tracking yield precisely, purge a few grams through the grinder before your first shot of the day and factor that into your calculations.
When to stop troubleshooting and escalate. If your espresso shots are pulling in under 20 seconds or over 35 seconds despite adjusting grind size, and you’ve already verified your dose and tamp are consistent, stop adjusting and check your machine’s pressure and your grinder’s burr condition. Consistently fast or slow shots after multiple grind adjustments point to equipment wear, not your technique. That’s the point to consult your machine’s manual or contact the manufacturer’s support — further grind adjustments will just waste more beans.
Drip Coffee Makers: Maximizing Volume
For drip machine owners, the yield question depends on your machine’s recommended coffee-to-water ratio and your carafe size.
Standard ratio. The Specialty Coffee Association recommends 60 grams of coffee per liter of water. That works out to about 10 grams per 150 ml cup. At that ratio, a kilo gives you 100 cups.
Home brewer reality. Most people use more than the SCA standard. A typical home drip brew uses 1–2 tablespoons per 6 oz cup, which lands around 12–15 grams. At 15 grams per cup, you get 66 cups per kilo. If you fill a 12-cup carafe with 75 grams of coffee, you’ll get about 13 full carafes from a kilo.
Machine-specific note. Check your machine’s manual for the recommended scoop size. Many machines include a scoop that holds about 10 grams, but some hold more. If you’re using the scoop that came with your machine, weigh it once to know your actual dose. That single measurement tells you exactly how many cups you’ll get from your next bag.
The failure mode that wastes the most coffee. The most common drip machine mistake is using the “strong” brew setting as a substitute for measuring coffee properly. If your machine has a strength selector, it typically extends brew time rather than adding more coffee — it doesn’t increase extraction enough to compensate for an under-dosed basket. The result is a weak, sour pot that you’re tempted to fix by adding more grounds next time, which throws off your yield calculations. Instead, weigh your dose once and keep it consistent, then adjust strength by changing the ratio deliberately rather than relying on the machine’s preset.
The Strength Factor: How Taste Changes Yield
Your personal strength preference is the single biggest variable in this calculation. The same kilo of beans can deliver 50 cups or 100 cups depending on how you brew.
The ratio spectrum. Coffee-to-water ratios range from 1:12 (strong) to 1:18 (lighter). At 1:12, you’re using about 20 grams per 240 ml cup. At 1:18, you’re using about 13 grams for the same volume. That’s a 35% difference in yield from the same bag.
How to find your ratio. Start with a 1:16 ratio (about 15 grams per 240 ml). Brew a cup, taste it, and adjust. If it’s too strong, use less coffee next time — your yield goes up. If it’s too weak, add more coffee — your yield goes down. This is the decision criterion that changes everything: your target strength determines your yield more than your brewing method does.
The practical takeaway. If you’re trying to stretch a bag of beans, use a slightly lighter ratio. You’ll get more cups, and many drinkers find 1:17 or 1:18 perfectly enjoyable for drip coffee. If you’re chasing a specific flavor profile, stick with the ratio that delivers it and accept the lower yield.
How Long Does 1kg of Coffee Last?
The yield math only matters if the beans stay fresh long enough to use them. Here’s how long a kilo lasts at different consumption rates:
| Daily Consumption | Cups per Day | Days per 1kg |
|---|---|---|
| 1 cup (15 g) | 1 | 66 days |
| 2 cups (30 g) | 2 | 33 days |
| 3 cups (45 g) | 3 | 22 days |
| 4 cups (60 g) | 4 | 16 days |
| 6 cups (90 g) | 6 | 11 days |
The freshness problem. Coffee beans start losing flavor about 2–3 weeks after roasting. If you drink one cup per day, a kilo will last over two months — well past peak freshness. For single-cup drinkers, buying 250g bags is usually better than 1kg, even though the per-gram price is higher.
The sweet spot. If you drink 2–3 cups per day, a kilo lasts 3–4 weeks, which aligns well with the freshness window. That’s why bulk buying makes sense for households that brew multiple cups daily but not for solo drinkers with one cup per morning.
Storage note. If you do buy a kilo, store it in an airtight container away from light and heat. Only grind what you need per brew. Whole beans in a sealed container at room temperature will stay drinkable for the full 3–4 week window, but they won’t taste as vibrant on day 28 as they did on day 3.
Common Mistakes That Reduce Your Yield
These are the failure points that make a kilo disappear faster than the math predicts:
Mistake 1: Overfilling the basket. Many drip machines and espresso portafilters hold more than the recommended dose. If your machine’s basket fits 25 grams but you’re using 20, you’re not getting extra strength — you’re just wasting coffee. Weigh your dose once to confirm what you’re actually using.
Mistake 2: Ignoring grinder retention. As mentioned earlier, grinders hold back coffee in the chute and burrs. This is normal, but it means your first grind after changing settings isn’t the full dose. Purge 2–3 grams before brewing to ensure your actual cup gets the full dose you measured.
Mistake 3: Using stale beans. Stale beans produce weaker coffee because they’ve lost volatile compounds. Many people respond by adding more coffee, which reduces yield. If your coffee tastes weak, check the roast date before increasing your dose.
Mistake 4: Guessing instead of weighing. A kitchen scale costs $15 and eliminates the guesswork. Volume measurements vary wildly — a tablespoon of finely ground coffee weighs more than a tablespoon of coarse grounds. Weigh your coffee for one week, and you’ll know your exact per-cup dose.
500g vs 1kg: Which Size Should You Buy?
The 500g bag is the halfway point that many buyers consider. Here’s the yield comparison:
500g yields:
- 33 cups at 15 g per cup
- 27 cups at 18 g per cup
- 55 cups at 9 g per cup (single espresso)
When 500g makes sense. If you drink one cup per day, a 500g bag lasts about a month at 15 g per cup. That fits the freshness window perfectly. It’s also a good size if you’re trying a new roaster or bean variety — you’re not committing to two months of coffee you might not like.
When 1kg makes sense. If you brew 3+ cups per day, or if you’re buying a bean you already know you like, the per-gram price break on 1kg is usually worth it. Just verify your consumption rate before committing. A kilo is only a deal if you actually use it before the beans go stale.
FAQ
How many cups of coffee can I make from 1kg of coffee beans?
Between 50 and 100 cups, depending on your brewing method and dose. At the standard 15 grams per cup, you get about 66 cups. At a lighter 10 grams per cup (drip coffee at the SCA ratio), you get 100 cups. At a heavier 20 grams per cup (French press or cold brew), you get 50 cups.
How many cups of coffee can be made from 1kg coffee beans?
The same math applies: divide 1000 by your per-cup dose. The most common home brewing doses (15–18 grams) yield 55–66 cups per kilo. Your actual number depends on your specific brewing method and how strong you like your coffee.
How many shots of coffee do you get out of 1kg of beans?
For espresso, you get 55–71 double shots per kilo at 14–18 grams per shot. If you pull single shots at 7–9 grams, you get 111–143 shots per kilo. Most home espresso drinkers use the double shot dose, so expect around 55 doubles from a kilo.
How many coffees will 500g of beans make?
At 15 grams per cup, a 500g bag makes about 33 cups. At 18 grams per cup, it makes about 27 cups. For espresso doubles at 18 grams, you get about 27 shots from 500g. This is why 500g is a practical size for solo drinkers — it lasts about a month at one cup per day.
Calculate Your Personal Yield
You now have everything you need to know exactly how many cups your next bag will deliver. Weigh your coffee for your next three brews, average the dose, and divide 1000 by that number. That’s your personal yield per kilo. Use that figure when you’re deciding between bag sizes, budgeting for your coffee habit, or figuring out how long your current supply will last. The calculation takes less than five minutes and eliminates the guesswork from every future coffee purchase.
<!– cluster-navigation –>
Explore This Topic
- Back to [General Coffee Info
Related guides in this cluster:
