Calculate teaspoons from dry ounces using ingredient density and packing style, convert teaspoons back to ounces or grams, and get a clearly rounded measuring-spoon plan.
Assumptions Assumptions
- Conversions are between weight (dry ounces) and volume (teaspoons) using ingredient bulk density (g/mL).
- Ounces are avoirdupois (1 oz = 28.349523125 g); this is not fluid ounces.
- Unit standards: US tsp = 4.92892159375 mL; metric tsp = 5 mL; US tbsp = 14.78676478125 mL. A metric tablespoon in the rounded plan is 15 mL. Each tablespoon is three teaspoons of its own standard.
- Preset densities are approximate. Packing factors are illustrative scenarios, not validated ingredient-specific corrections. Custom calibration from a tared sample is preferred when precision matters.
- Densities vary by brand, grind, and humidity; results are estimates suitable for cooking, not lab work.
- For highest accuracy in baking, weigh ingredients rather than converting to volume.
When to Use This Calculator
- Converting recipe weights to spoon measures when you donโt have a scale.
- Comparing US and metric teaspoon measurements. Spoon plans use the selected standard; US and metric spoon sizes differ.
- Accounting for different salt types (e.g., Morton vs. Diamond Crystal) by density.
Input Definitions
- Ingredient โ selects an approximate density (g/mL); choose โCustomโ to enter your own.
- Dry Ounces โ weight input; select oz, g, or lb.
- Teaspoons โ volume input; select US or metric tsp, US tbsp, or mL.
- Conversions โ tsp = (oz ร 28.349523125 รท density) รท 4.92892; oz = (tsp ร 4.92892 ร density) รท 28.349523125.
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Dry Ounce to Tsp Formula
The following formulas convert dry ounces (weight) to teaspoons (volume) and back using ingredient density.
- 1 ounce (avoirdupois) = 28.349523125 g
- US teaspoon = 4.92892159375 mL
- Metric teaspoon = 5 mL
- US tablespoon = 14.78676478125 mL = 3 US tsp
- ฯ (density) is ingredient-specific in g/mL (see calculator presets)
Dry Ounce to Tsp Conversion Table
| Ingredient | US tsp per 1 oz |
|---|---|
| All-purpose flour | 10.852 |
| Granulated sugar | 6.807 |
| Brown sugar (packed) | 6.185 |
| Powdered sugar | 11.503 |
| Cocoa powder | 15.977 |
| Table salt | 4.793 |
| Kosher salt (Morton) | 5.752 |
| Kosher salt (Diamond) | 10.091 |
| Baking powder | 7.101 |
| Baking soda | 6.185 |
| Rolled oats | 15.136 |
| White rice (uncooked) | 7.374 |
| Almond flour | 14.028 |
| Cornstarch | 10.651 |
| * Calculations use approximate densities; 1 oz = 28.349523125 g, 1 US tsp = 4.92892159375 mL; typical packing factor = 1. | |
How do you convert dry ounces to teaspoons? Multiply ounces by 28.349523125 to get grams, divide by the ingredientโs density (g/mL) to get mL, then divide by the teaspoon size (4.92892159375 mL for US or 5 mL for metric).
How do you convert teaspoons to dry ounces? Multiply teaspoons by the mL per teaspoon (US: 4.92892159375; metric: 5), multiply by density (g/mL) to get grams, then divide by 28.349523125 to get ounces.
Example Problem
Convert 2.5 oz of granulated sugar to US teaspoons.
Using density ฯ = 0.845 g/mL and US tsp = 4.92892159375 mL: tsp = (2.5 ร 28.349523125 รท 0.845) รท 4.92892159375.
tsp โ 17.02 US tsp
