Most syrups — maple, corn, golden, and brown rice — are almost pure simple sugar and contain little to no dietary fiber. Yet if you're tracking fiber for gut health, blood sugar management, or a low-FODMAP plan, it helps to know exactly what you're pouring. This calculator converts syrup fiber values into per-100g and per-serving amounts in seconds.
Choose a syrup type and enter your serving size to see the fiber grams, or flip to label mode and enter the fiber and serving size from your bottle to get a standardized per-100g number. It's useful for meal planning, nutrition logging, and comparing brands — especially sugar-free syrups that sometimes boost fiber with inulin or other additives.
🍯 Syrup Fiber Calculator
Estimate the fiber content of your favorite syrup — by serving size or from a nutrition label.
*Sugar-free syrups vary widely; check the label. Most traditional syrups contain little or no dietary fiber.
How to Use This Tool
This calculator works in two ways, depending on the information you have:
- Serving mode. Pick a syrup type and enter how much you plan to use (grams, tablespoons, or fluid ounces). The tool converts your serving to grams and estimates the fiber using the syrup's per-100g value.
- Label mode. If you're checking a specific brand, select "Per 100 g from a label" and enter the fiber grams per serving and the serving size printed on the bottle. This gives you a standardized per-100g value you can compare with other foods.
After you click Calculate, the result box shows the fiber in your serving, the fiber per 100 g, and the percentage of the Daily Value (DV). The Daily Value for fiber is 28 g per day on a 2,000-calorie diet.
How the Calculation Works
Two formulas power this tool. For serving mode:
For label mode, we reverse the process:
The per-100g method is the standard way nutrition professionals compare foods. Because syrups are dense and consumed in small amounts, per-100g values can look high even when a typical drizzle contains only a trace of fiber. Always pair the per-100g number with a realistic serving size.
Fiber Content of Common Syrups
Most traditional syrups are essentially refined sugars and contain little or no fiber. The table below shows average values from USDA-style food-composition data; actual values vary slightly by brand and batch.
| Syrup type | Fiber per 100 g | Fiber per 1 tbsp (20 g) |
|---|---|---|
| Maple syrup | 0 g | 0 g |
| Honey | 0.2 g | 0.04 g |
| Agave nectar | 0.2 g | 0.04 g |
| Light/dark corn syrup | 0 g | 0 g |
| Golden syrup | 0 g | 0 g |
| Brown rice syrup | 0 g | 0 g |
| Molasses | 0 g | 0 g |
| Sugar-free pancake syrup | 0–15 g | 0–3 g |
Sugar-free syrups are the exception: many use inulin, chicory root fiber, or oligosaccharides to add body and sweetness, which can push fiber content much higher. Since formulations differ, the label is the only reliable source.
Worked Examples
Example 1: Honey drizzle on oatmeal. You add 1 tablespoon of honey (about 20 g). With honey's average fiber of 0.2 g per 100 g:
Fiber = 0.2 × 20 ÷ 100 = 0.04 g
That's essentially negligible — less than 1% of the Daily Value.
Example 2: Reading a sugar-free syrup label. The label says 1 g of fiber per ¼ cup (60 g). To find the per-100g value:
Fiber per 100 g = 1 ÷ 60 × 100 = 1.67 g
In a typical ¼ cup serving, you'd get 1 g of fiber — more than regular syrup, but still a small contribution to your 28 g daily target.
Tips & Common Mistakes
- Use grams, not volume, for accuracy. A tablespoon of maple syrup weighs close to 20 g, but this varies slightly with temperature and sugar concentration. When a label gives grams, use that.
- Don't assume "sugar-free" means low-carb. Some sugar-free syrups contain sugar alcohols and fiber; net carbs can still add up.
- Check the serving size. Many bottles list a tiny 1-tablespoon serving to keep numbers low; if you pour freely, multiply accordingly.
- Track fiber from syrups anyway. Even 1–2 g from a fiber-fortified syrup counts toward your daily 28 g. When you're on a keto or low-carb plan, subtract that fiber to get net carbs.
Frequently Asked Questions
Does maple syrup contain any fiber?
No. Pure maple syrup is essentially sucrose and water; USDA data lists 0 g of dietary fiber per 100 g. Any trace amounts come from filtering or impurities and are not nutritionally meaningful.
Is honey a good source of fiber?
No. Honey contains about 0.2 g of fiber per 100 g, so a typical tablespoon provides only about 0.04 g. Honey is valued for flavor and antioxidants, not fiber.
Why does my sugar-free syrup have fiber?
Many sugar-free syrups add soluble fibers such as inulin, dextrin, or polydextrose to mimic the mouthfeel of real syrup and improve texture. These fibers also help lower net carbs. Because brands use different blends, always read the nutrition panel rather than relying on a generic value.
How does fiber affect net carbs?
Net carbs are total carbs minus fiber (and sometimes sugar alcohols). Since fiber is not digested into blood sugar, it doesn't raise glucose the way sugar does. For keto or diabetic meal planning, the fiber in a fortified syrup can reduce its net-carb impact — but check whether the label also includes sugar alcohols, which are only partially absorbed.