UK Teaspoon Converter
Choose the spoon size your UK recipe means.
Granulated White Sugar
Why Grams to Teaspoon Differs by Ingredient
A teaspoon is a unit of volume (~4.93 mL), whereas a gram is a unit of mass/weight. Therefore, 1 tsp of dense table salt weighs ~5.7g, whereas 1 tsp of airy powdered flour weighs only ~2.6g.
Kitchen Ingredient Density Directory
Select any ingredient below to immediately calculate and update the visual spoon rendering.
Quick Grams to Teaspoon Reference Charts
Common Sugar Grams to Teaspoon
| Grams | Teaspoons | Fraction |
|---|---|---|
| 2.1 g | 0.5 tsp | ½ tsp |
| 4.2 g | 1.0 tsp | 1 tsp |
| 8.3 g | 2.0 tsp | 2 tsp |
| 12.5 g | 3.0 tsp | 1 tbsp (3 tsp) |
| 25.0 g | 6.0 tsp | 2 tbsp |
Table Salt Grams to Teaspoon
| Grams | Teaspoons | Fraction |
|---|---|---|
| 1.4 g | 0.25 tsp | ¼ tsp |
| 2.8 g | 0.5 tsp | ½ tsp |
| 5.7 g | 1.0 tsp | 1 tsp |
| 11.4 g | 2.0 tsp | 2 tsp |
| 17.1 g | 3.0 tsp | 1 tbsp |
All-Purpose Flour Grams to Teaspoon
| Grams | Teaspoons | Fraction |
|---|---|---|
| 1.3 g | 0.5 tsp | ½ tsp |
| 2.6 g | 1.0 tsp | 1 tsp |
| 5.2 g | 2.0 tsp | 2 tsp |
| 7.8 g | 3.0 tsp | 1 tbsp |
| 31.2 g | 12.0 tsp | ¼ cup (4 tbsp) |
How UK Teaspoon Converter Works?
The UK Teaspoon Converter works by applying either the traditional UK imperial teaspoon of 5.92 mL or the modern British metric teaspoon of 5 mL. The page opens on the imperial spoon for vintage British recipes.
Date the recipe
Use the imperial spoon for British recipes printed before 1970. Use the 5 mL metric spoon for recipes printed after metrication.
Select the standard
Switch between "UK Imperial Teaspoon (5.92 mL)" and "Metric Teaspoon (5.00 mL)".
Convert the amount
Enter grams or teaspoons. The imperial result is 18% heavier per spoon than the metric result.
UK Teaspoon Converter Formula
The UK Teaspoon Converter formula is UK imperial tsp = grams ÷ (density × 5.91939 mL). One imperial teaspoon equals ⅓ imperial tablespoon, and one imperial tablespoon equals ⅝ imperial fluid ounce (fl oz) of 28.4131 mL.
1 imperial tsp = 28.4131 mL × 5/24 = 5.91939 mL | tsp = g ÷ (ρ × 5.91939)
- Granulated sugar: 0.846 g/mL × 5.92 mL = 5.01 g per imperial tsp.
- 10 g of table salt ÷ 6.83 g = 1.46 imperial tsp.
- 1 imperial tbsp (17.76 mL) = 3 imperial tsp.
UK Teaspoon Converter Conversion Table
The UK Teaspoon Converter conversion table compares 5 traditional imperial measures with their modern UK metric equivalents and shows the sugar weight of each.
| UK measure | Imperial mL | Metric mL | Difference | Sugar (imperial) | Sugar (metric) |
|---|---|---|---|---|---|
| ¼ tsp | 1.48 mL | 1.25 mL | +18.4% | 1.25 g | 1.06 g |
| ½ tsp | 2.96 mL | 2.5 mL | +18.4% | 2.5 g | 2.12 g |
| 1 tsp | 5.92 mL | 5 mL | +18.4% | 5.01 g | 4.23 g |
| 1 dessertspoon | 11.84 mL | 10 mL | +18.4% | 10.02 g | 8.46 g |
| 1 tbsp | 17.76 mL | 15 mL | +18.4% | 15.02 g | 12.69 g |
What is UK Teaspoon Converter?
The UK Teaspoon Converter is a grams-to-teaspoons calculator for British recipes that supports the old imperial teaspoon (5.92 mL) and the modern metric teaspoon (5 mL). British spoon sizes changed during metrication in the 1960s and 1970s.
The imperial system built the teaspoon from the imperial fluid ounce of 28.41 mL: 1 tablespoon equals ⅝ fl oz (17.76 mL) and 1 teaspoon equals ⅓ tablespoon. Modern British cookbooks print "1 tsp" for a 5 mL spoon. Using the wrong spoon on a vintage recipe shifts every spoon amount by 18%.
What are the uses of UK Teaspoon Converter?
There are 4 main uses of the UK Teaspoon Converter: cooking from vintage British cookbooks, restoring family recipes, comparing UK and US recipes, and food history research.
Vintage cookbooks
Pre-1970 books by British authors assume imperial spoons. The converter gives grams for those larger spoons.
Family recipes
A grandmother’s scone recipe with "2 tsp baking powder" holds 11.5 g in imperial spoons, against 9.7 g in metric spoons.
UK vs US comparison
A modern UK teaspoon holds 5 mL and a US teaspoon holds 4.93 mL, so modern recipes swap freely.
Food history research
Historians convert period spoon measures into grams to recreate historical dishes.
UK Teaspoon Converter Measuring Tips
- Traditional UK Imperial teaspoons hold 5.92 mL, notably larger than US spoons.
- Modern UK recipe books increasingly adopt the 5.00 mL metric spoon.