How do I convert teaspoons to grams?

By Paulo de VriesLast verified 2026-05-204 sources~7 min readhigh consensus

Conversion varies by ingredient. Water: 1 tsp = 5g. Salt (table): 1 tsp = 6g. Salt (Diamond Crystal kosher): 1 tsp = 3g. Sugar: 1 tsp = 4g. Flour: 1 tsp = 2.5g. Baking soda: 1 tsp = 4.6g. Baking powder: 1 tsp = 4g. Vanilla extract: 1 tsp = 4g. 1 US teaspoon = 5 mL volume.

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The full answer

Teaspoon-to-gram conversion is critical for small-quantity ingredients — baking soda, baking powder, salt, vanilla extract, spices. Unlike cups (where small errors compound), teaspoon measurements matter more proportionally because the amounts are small. A 50% error in baking soda (1.5 tsp instead of 1 tsp) ruins a recipe. Precision matters at the teaspoon level.

**The standard teaspoon = 5 mL (US + metric)**

Note: Australian teaspoon = 5 mL same as US. UK teaspoon historically varied but modern UK = 5 mL. Important: medical "teaspoonful" is different (varies by syringe/dropper; don't use for medications without specification).

**Liquids (consistent — water-based):**

- **Water:** 1 tsp = 5g - **Whole milk:** 1 tsp = 5g - **Heavy cream:** 1 tsp = 5g - **Olive oil:** 1 tsp = 4.5g - **Vegetable oil:** 1 tsp = 4.5g - **Honey:** 1 tsp = 7g (denser than water) - **Maple syrup:** 1 tsp = 6.7g - **Molasses:** 1 tsp = 7g - **Lemon juice:** 1 tsp = 5g - **Vinegar:** 1 tsp = 5g - **Soy sauce:** 1 tsp = 5.5g - **Vanilla extract:** 1 tsp = 4g - **Almond extract:** 1 tsp = 4g - **Peppermint extract:** 1 tsp = 4g

**Sweeteners:**

- **Granulated white sugar:** 1 tsp = 4g - **Brown sugar (firmly packed):** 1 tsp = 4.5g - **Powdered sugar:** 1 tsp = 2.5g - **Caster sugar:** 1 tsp = 4g

**Flours (1 tsp, spoon + leveled):**

- **All-purpose flour:** 1 tsp = 2.5g - **Bread flour:** 1 tsp = 2.5-3g - **Cake flour:** 1 tsp = 2.3g - **Whole wheat flour:** 1 tsp = 2.7g - **Almond flour:** 1 tsp = 2g - **Coconut flour:** 1 tsp = 2.3g - **Cocoa powder:** 1 tsp = 2g - **Cornstarch:** 1 tsp = 2.5g - **Rice flour:** 1 tsp = 3g

**Leaveners (CRITICAL for baking precision):**

- **Baking powder:** 1 tsp = 4g (some say 4.6g; close enough) - **Baking soda:** 1 tsp = 4.6g - **Active dry yeast:** 1 tsp = 3g - **Instant yeast:** 1 tsp = 3g - **Cream of tartar:** 1 tsp = 3g

**Salt + spices (REAL variation between brands):**

- **Table salt (fine):** 1 tsp = 6g - **Kosher salt (Diamond Crystal):** 1 tsp = 3g (lightest) - **Kosher salt (Morton):** 1 tsp = 5g - **Sea salt (fine):** 1 tsp = 6g - **Sea salt (coarse):** 1 tsp = 4-5g (depends on grind) - **Pink Himalayan salt (fine):** 1 tsp = 6g - **Black pepper (ground):** 1 tsp = 2g - **White pepper:** 1 tsp = 2g - **Cinnamon (ground):** 1 tsp = 2.7g - **Cumin (ground):** 1 tsp = 2g - **Paprika:** 1 tsp = 2.2g - **Chili powder:** 1 tsp = 2.5g - **Garlic powder:** 1 tsp = 3g - **Onion powder:** 1 tsp = 2.3g - **Ginger (ground):** 1 tsp = 2g - **Nutmeg (ground):** 1 tsp = 2.2g - **Turmeric:** 1 tsp = 3g - **Italian seasoning:** 1 tsp = 1g - **Dried oregano:** 1 tsp = 1g - **Dried basil:** 1 tsp = 1g - **Dried thyme:** 1 tsp = 1.2g - **Dried parsley:** 1 tsp = 0.5g

**Other small-quantity ingredients:**

- **Vanilla extract:** 1 tsp = 4g - **Lemon zest:** 1 tsp = 2g - **Espresso powder:** 1 tsp = 2g - **Cocoa nibs:** 1 tsp = 3g

**Common teaspoon conversions to other units:**

- **1 tsp = 1/3 tablespoon (tbsp)** - **1 tsp = 1/6 fluid ounce (US)** - **1 tsp = 5 mL (US + metric)** - **1 tsp = 1/48 cup** - **3 tsp = 1 tbsp** - **6 tsp = 1 fluid ounce** - **48 tsp = 1 cup**

**Quick mental math (round numbers):**

- **1 tsp water = 5g** - **1 tsp salt = 6g (table); 3g (DC kosher); 5g (Morton kosher)** - **1 tsp baking powder = ~4g** - **1 tsp baking soda = ~5g (close enough)** - **1 tsp vanilla = 4g** - **1 tsp flour = ~3g**

**The salt brand difference at teaspoon scale:**

This matters even more at small quantities. A recipe asking for "2 tsp salt": - **Diamond Crystal:** 6g total - **Morton:** 10g total (67% more!) - **Table salt:** 12g total (100% more!)

For seasoning meat, dressings, baking — this is significant. Always know your salt brand.

**Critical for baking (where 0.5g matters):**

**Yeast (recipe says "1 tsp yeast"):** - Active dry: 3g - Instant: 3g - Pre-measured packets: usually 7g (~2.5 tsp) - Don't substitute interchangeably without checking

**Baking soda vs baking powder:** - Different functions (acid vs alkaline) - Don't substitute 1:1 - Recipe-specific quantities matter

**The pinch + dash:**

For tiny amounts: - **Pinch = ~0.4g** (about 1/8 tsp salt or spice) - **Dash = ~0.6g** (slightly more than pinch) - **Smidgen = ~0.2g** (less than pinch)

Tools called "pinch + dash + smidgen" measuring sets exist for precise spice work.

**For very precise baking:**

- Use a digital scale that reads to 0.1g precision - Weigh small amounts (yeast, baking soda) for consistency - Reserve teaspoon measurements for tasting + non-critical seasoning

**Standard measuring spoon set:**

Includes: - **1 tbsp (15 mL)** - **1/2 tbsp / 1.5 tsp** - **1 tsp (5 mL)** - **1/2 tsp** - **1/4 tsp** - **1/8 tsp**

For accuracy, level off dry ingredients with knife or finger.

**Common recipe scaling:**

Doubling: - **2 × 1 tsp = 2 tsp = 2/3 tbsp**

Halving: - **0.5 × 1 tsp = 1/2 tsp**

By weight (more accurate): - **5g × 0.5 = 2.5g** - Math is exact, no fractional teaspoons

**Why bakers prefer grams for small quantities:**

1. **Yeast precision matters:** 3g ≠ 4g for proper rise 2. **Baking soda affects pH:** small variations alter chemistry 3. **Salt affects texture + gluten:** measure exactly 4. **Universal language:** 3g of yeast is 3g of yeast worldwide 5. **No "rounded vs leveled" ambiguity**

**Common mistakes:**

- **Heaping teaspoons:** dry ingredients pile up 25-50% more than leveled - **Eyeballing instead of measuring:** large variation between cooks - **Wrong salt brand without adjustment:** 50%+ over-salt or under-salt - **Confusing teaspoon and tablespoon:** 3× error in either direction - **Using kitchen serving spoons:** larger than measuring tablespoons; teaspoons are 5 mL, not "small spoons"

**For accurate measurement:**

**Dry ingredients (powders, salt):** 1. Spoon into measuring spoon 2. Level off with knife/finger 3. Don't pack down (unless brown sugar with "packed" specified)

**Liquids:** 1. Pour into spoon over the bowl (catches overflow) 2. Don't fill to overflowing 3. Eye-level reading for cup measurements

**Wet ingredients (paste-like):** 1. Use solid measuring spoon 2. Level off if measuring solid teaspoon 3. Don't pack down extracts (just fill)

**Universal tip:**

For amounts where precision really matters (yeast, baking soda, baking powder, salt): - **Weigh on a scale** when possible - **0.1g precision scale:** $25-40 (worthwhile for serious baking) - **Otherwise:** carefully measure teaspoon by leveling exact amount

**Don't:** - Pack flour into teaspoon (over-weights) - Confuse teaspoon with tablespoon (3x error) - Use coffee scoop as substitute for measuring spoon - Trust kitchen drawer "teaspoons" without verifying - Eyeball baking powder/soda (precision matters)

**Common mistakes:**

- **Heaping instead of leveling:** dry ingredients overflow - **Different salt brands without conversion:** 30-100% variation - **Confusing tsp with tbsp:** triples or thirds the amount - **Not zeroing scale (tare) with spoon:** wrong reading - **Using imprecise measuring:** household "tsp" can be 4-7 mL

**Cross-reference:** see /pages/how-to-convert/tablespoons-to-grams for tablespoon conversion + /pages/how-to-convert/cups-to-grams for cup conversion + /pages/how-to-convert/ounces-to-grams for weight conversion.

Most published references (NIST Mass Standards, USDA FoodData Central, King Arthur Baking, "The Joy of Cooking", "The Baking Bible" by Rose Levy Beranbaum) converge on 5 mL volume = standard teaspoon, with ingredient-specific weight conversions especially critical for leaveners and salt in baking.

Time ranges by condition

Condition	Duration	Note
1 US teaspoon (volume)	5 mL	—
Water (1 tsp)	5g	—
Sugar (granulated, 1 tsp)	4g	—
All-purpose flour (1 tsp)	2.5g	—
Salt (table, 1 tsp)	6g	—
Salt (Diamond Crystal kosher, 1 tsp)	3g	—
Salt (Morton kosher, 1 tsp)	5g	—
Baking soda (1 tsp)	4.6g	—
Baking powder (1 tsp)	4g	—
Vanilla extract (1 tsp)	4g	—

What changes the time

Ingredient density. Water 5g; honey 7g; cocoa 2g; salt varies by brand
Salt brand difference. Diamond Crystal 3g; Morton 5g; table salt 6g (per 1 tsp)
Leveling technique. Leveled vs heaped = 25-50% difference for dry ingredients
Precision for leaveners. 0.5g matters for baking soda/powder/yeast — use scale when possible
Teaspoon standard. US = 5 mL; Australian + UK + metric = 5 mL (same)

Common questions

Why does the teaspoon-to-gram conversion of salt depend on the brand?

Different salt brands have wildly different crystal shapes + densities. Diamond Crystal has hollow, light crystals (3g/tsp). Morton has flat denser crystals (5g/tsp). Table salt has very dense fine crystals (6g/tsp). Same volume (1 tsp) can weigh 2x as much depending on brand. For seasoning meat or precise baking, this matters. Always know your salt brand or measure by weight.

Do baking powder and baking soda weigh the same per teaspoon?

Approximately yes — baking powder ≈ 4g/tsp and baking soda ≈ 4.6g/tsp. Close enough for most cooking. But they have different chemical roles: baking soda is alkaline + needs acid to activate; baking powder is acid + base combined (self-activating). Even though they're similar in weight, they're NOT interchangeable. Recipe-specific ratios matter more than mass conversion.

Is "1 tsp" the same in Australia as in America?

Yes — teaspoons are 5 mL worldwide (US, Australia, UK, metric). This is unlike tablespoons (US = 15 mL; Australia = 20 mL). For teaspoons, recipes from any country use the same standard. If a recipe explicitly says "scant teaspoon" or "rounded teaspoon" it's usually 4 mL or 6 mL respectively — but these are non-standard variations.

Sources

We cite primary research, expert practice, and authoritative reference. Higher-tier sources weighted heavier. See methodology.

Tier 1 · peer-reviewed / governmentalTier 2 · editorial referenceTier 3 · named practitioner

T1NIST Mass Standards — Official US measurement standards
T1USDA FoodData Central — Official US food composition database with weights
T2King Arthur Baking — Industry-standard ingredient weight chart with small-quantity conversions
T3Rose Levy Beranbaum, "The Baking Bible" — Pro baker reference with precision teaspoon-to-gram conversions

Why this page existsThis page exists because “How do I convert teaspoons to grams?” is one of the recurring questions we measure across search queries + LLM crawls + reading depth. When enough asking accumulated, we wrote this answer with sources cited. The mechanism is the trust signal — see how it works.

What could change this answer

honest uncertainty

We don’t know your specific equipment, ingredient batch, or environment. This answer is the best directional estimate from cited sources. Here’s where it’s less certain:

5 factors shift the answer. Your specific ingredient density, salt brand difference, leveling technique (and more) can move this estimate in either direction. The table below shows the documented ranges.
Range spans 10 documented conditions. Pick the row that matches your scenario; halfway between two rows is your best estimate. The widest condition you can imagine is the safer upper bound.
Treat as a directional starting point. Real-world equipment, ingredient batch, and ambient conditions cause natural variance the table cannot capture. Use sensory checks (sight, smell, touch, internal temperature when relevant) alongside this answer — not instead of it.
Backed by 4 cited sources — verify if precision matters. See the Sources section for primary references. Cross-check the cited materials when stakes are high: commercial production, food safety, allergens, dietary or medical considerations.
Verified yesterday. If you found a better-sourced answer or our answer no longer matches reality, tell us — corrections are public and dated. The page exists to be accurate, not to be unchanged.

Cite this page

de Vries, P. (2026). How do I convert teaspoons to grams?. AskedWell. Retrieved 2026-05-21, from https://askedwell.com/pages/how-to-convert/teaspoons-to-grams

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Last verified: 2026-05-20 · Published 2026-05-20

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