Lemon Curd: Jar Sizes, Cups & How Much a Recipe Needs
1 cup of lemon curd weighs about 300 g, which makes a tablespoon 18.8 g and a teaspoon 6.25 g. Small amounts are easier to measure with spoons than to weigh.
💡 Tip: Measure at room temperature — cold curd is stiff and traps air, reading low on volume
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How many cups is a jar of lemon curd?
Lemon curd is sold by weight, but recipes ask for cups. At 300 g per cup, the common jars work out to:
| Jar size | Cups (approx) |
|---|---|
| 10 oz (283 g) — standard US jar | scant 1 cup |
| 11 oz (312 g) | ~1 cup |
| 13 oz (370 g) — large jar | ~1¼ cups |
How much lemon curd does a recipe need?
| Using it for… | Curd needed (approx) |
|---|---|
| Filling a 9-inch tart | ~1½ cups (≈ 450 g) — one jar is a little short |
| 9-inch lemon meringue pie | ~2 cups (≈ 600 g) |
| Filling 12 cupcakes | ~¾ cup (≈ 225 g) |
| Layer-cake filling (between 2 layers) | ~1 cup (≈ 300 g) |
Converting grams of lemon curd back to cups
| Grams | Amount | Ounces |
|---|---|---|
| 15 | 2 3/8 tsp | 0.53 |
| 20 | 1 1/8 tbsp | 0.71 |
| 30 | 1 5/8 tbsp | 1.06 |
| 50 | 2 2/3 tbsp | 1.76 |
| 100 | 1/3 cup | 3.53 |
| 150 | 1/2 cup | 5.29 |
| 200 | 2/3 cup | 7.05 |
| 250 | 7/8 cup | 8.82 |
| 300 | 1 cup | 10.6 |
| 340 | 1 1/8 cups | 12 |
| 450 | 1 1/2 cups | 15.9 |
How many grams in a cup of lemon curd?
| Cups | Grams | Ounces |
|---|---|---|
| 1/8 | 37.5 | 1.32 |
| 1/4 | 75 | 2.65 |
| 1/3 | 100 | 3.53 |
| 1/2 | 150 | 5.29 |
| 2/3 | 200 | 7.05 |
| 3/4 | 225 | 7.94 |
| 1 | 300 | 10.6 |
| 1 1/2 | 450 | 15.9 |
Spoon reference: 1 tablespoon ≈ 18.8 g, 1 teaspoon ≈ 6.25 g.
Is lemon curd heavy or light for its category?
Among the 10 syrups & spreads charted here, lemon curd is 5th heaviest at 300 g per cup, between hazelnut spread at 296 g and maple syrup at 322 g.
Swapping these by the cupful is not like-for-like. A cup of maple syrup in place of lemon curd puts roughly 22 g more in the bowl, so match the grams rather than the cups.
Common questions about measuring lemon curd
- How many grams is a tablespoon of lemon curd?
- 1 tablespoon of lemon curd is about 18.8 grams (a teaspoon is roughly 6.25 g).
- How many cups is a jar of lemon curd?
- A standard 10 oz (283 g) jar is a scant 1 cup. An 11 oz jar is about 1 cup, and a large 13 oz (370 g) jar is roughly 1¼ cups, based on 300 g per cup.
- How much lemon curd do I need for a tart?
- A 9-inch tart usually needs about 1½ cups (≈ 450 g) of lemon curd, so a single 10 oz jar (about 1 cup) is a little short — buy two, or top up with whipped cream.
- How many grams is 1 cup of lemon curd?
- 1 US cup of lemon curd weighs about 300 grams (roughly 10.6 ounces).
- Is one jar of lemon curd enough for a lemon meringue pie?
- Usually not on its own — a 9-inch lemon meringue pie wants about 2 cups (≈ 600 g), which is roughly two standard 10 oz jars.
- How many cups is 100g of lemon curd?
- 100 g of lemon curd works out at roughly 1/3 cup.
- How many cups is 250g of lemon curd?
- 250 g of lemon curd works out at roughly 7/8 cup.
- Why do my numbers differ slightly?
- Viscosity depends on temperature. Warm syrup flows into the corners of a cup and cold syrup leaves gaps behind, and a sticky film always stays in the cup — which is why weighing straight into the bowl is easier.