Skip to content
Teaspoon to Grams

Grams of Sugar to Teaspoons Calculator

Convert grams of sugar to teaspoons for granulated, brown and powdered sugar. One level teaspoon of granulated sugar weighs 4.2 g.

gramsteaspoons
Common amounts:

Granulated sugar · 10 grams equals

2.38teaspoons

The default when a recipe just says "sugar". Free-flowing, so it needs no packing.

Formula: grams ÷ 4.2 = teaspoons

Calculated in your browser — nothing is uploaded or stored.

Level teaspoons

2.38 tsp

1 tsp granulated sugar = 4.2 g

One level teaspoon of granulated sugar (white) weighs approximately 4.2 grams, based on a bulk density of 0.8525 grams per millilitre and a US teaspoon of 4.93 millilitres.

  • Based on standard culinary reference values
  • No login required — 100% free
  • Your data never leaves your browser

Last updated · Reviewed by the Ali Raza

How many grams of sugar are in a teaspoon?

One level teaspoon of granulated white sugar weighs about 4.2 grams. To convert grams of sugar to teaspoons, divide the weight by 4.2 — so 10 g is 2.38 teaspoons and 20 g is 4.76 teaspoons. Packed brown sugar weighs 4.6 g per teaspoon and powdered sugar just 2.5 g.

The three sugars differ because of how they pack rather than what they are. Granulated sugar is free-flowing and needs no pressing. Brown sugar is moist enough to hold a shape, which is why recipes say packed and why it comes out heavier. Powdered sugar is milled fine and aerated with a little starch, so a spoonful is mostly air — barely half the weight of granulated.

All three figures assume a level spoon. Sugar is forgiving to measure by volume — a few percent either way changes sweetness, not structure. For meringue or caramel, where ratios do real work, switch to a scale.

How it's calculated

The sugar reference values, and how to use them

The method is a single division: grams ÷ grams-per-teaspoon = teaspoons. For granulated sugar that divisor is 4.2. Reverse it — multiply — to go from teaspoons back to grams.

The three sugars differ because of crystal size and air content, not because of what they are made of. Granulated sugar has even, free-flowing crystals. Brown sugar is moist and clumps, so recipes assume it is firmly packed, which compresses out the air and pushes a teaspoon up to 4.6 g. Powdered sugar is milled to a flour-like dust cut with cornstarch, and holds so much air that a teaspoon is only 2.5 g — barely 60% of the granulated figure.

Reference weight of one level teaspoon
One level teaspoon of…Weighs
Granulated sugar (white)4.2 g
Brown sugar, firmly packed4.6 g
Powdered sugar (confectioners’)2.5 g
Caster / superfine sugarabout 4.2 g

Beyond baking

Reading sugar on a nutrition label

The teaspoon conversion is how gram figures on packaging become intuitive.

Nutrition labels list sugar in grams because grams are precise and internationally consistent. The trouble is that almost nobody has an instinct for what 35 g of sugar looks like. Dividing by 4.2 turns it into teaspoons — a measure everyone can picture — which is exactly why public-health campaigns present sugar content that way.

The arithmetic is the same one this page does for baking. The only thing that changes is what you do with the answer.

  • A 330 ml can of regular cola contains about 35 g of sugar — 8.33 teaspoons.

  • The WHO’s suggested daily limit for free sugars is about 25 g for an adult, or 5.95 teaspoons.

  • A 4 g serving is one teaspoon — 0.9519 tsp, to be exact. This is the round number behind most “teaspoons of sugar” comparisons.

  • Labels count all free sugars, not just added white sugar. Honey, syrups and fruit-juice concentrate are included, and honey in particular is much denser — 7.0 g per teaspoon against 4.2 g.

Quick answers

Straight answers to the exact amounts people ask about

How many teaspoons is 4 grams of sugar?
0.9519 teaspoons — effectively one level teaspoon, which is why a 4 g serving is often labelled as "a teaspoon of sugar".
How many teaspoons is 10 grams of sugar?
2.38 teaspoons of granulated sugar, or about 2½ teaspoons rounded to what a measuring spoon can do.
How many teaspoons is 20 grams of sugar?
4.76 teaspoons of granulated sugar — a little under 1 tablespoon plus 2 teaspoons.
How many teaspoons is 40 grams of sugar?
9.519 teaspoons, which is over 3 tablespoons. At this quantity a scale or a measuring cup is more practical.
How many teaspoons is 1 gram of sugar?
0.238 teaspoons — just under a quarter teaspoon of granulated sugar.
How many grams is 1 teaspoon of sugar?
4.2 g of granulated sugar, 4.6 g of packed brown sugar, or 2.5 g of powdered sugar.
How many grams is 2 teaspoons of sugar?
8.4 g of granulated sugar. Two teaspoons is the sugar in a typical single-serve sachet pair.
How many teaspoons of sugar are in a can of soda?
A 330 ml can with 35 g of sugar contains 8.33 teaspoons — the calculation nutrition campaigns use to make gram figures tangible.

Accuracy & assumptions

What these numbers assume

All figures assume level teaspoons. Granulated sugar is the easiest ingredient on this site to measure reliably: the crystals are uniform, they do not absorb much moisture, and they neither compress nor clump, so a teaspoon of granulated sugar is genuinely consistent from kitchen to kitchen.

Brown sugar is the opposite. The 4.6 g figure assumes it is firmly packed, as recipes intend when they say “packed brown sugar”. Spooned in loosely it can weigh a third less, and dried-out brown sugar behaves differently again. If a brown sugar quantity matters, weigh it.

Caster and superfine sugar are close enough to granulated that we use the same value — the crystals are smaller but pack similarly, and the difference falls inside normal measurement variation. Icing sugar and confectioners’ sugar are the same product as powdered sugar. For quantities above about 50 g, a scale beats a spoon regardless of which sugar you are using.

Who should use this

Where this conversion matters

  • Bakers converting metric recipes

    A recipe listing 50 g of sugar means nothing to a drawer full of measuring spoons. This turns it into a number you can measure out.

  • People tracking sugar intake

    Nutrition labels report grams. Converting them into teaspoons is what makes "35 g of sugar" register as the eight-plus spoonfuls it actually is.

  • Anyone scaling a recipe down

    Quartering a cake recipe produces awkward gram figures. Teaspoons handle small remainders far more gracefully than a cheap kitchen scale does.

Related calculators

Other conversions on this site

Every tool here works the same way — real-time, ingredient-aware, and free.

FAQs

Questions about this conversion

One level teaspoon of granulated white sugar weighs about 4.2 grams. This is the figure behind nutrition labelling too — the "teaspoons of sugar" in a drink is its sugar content in grams divided by roughly 4.2.

Divide the grams by 4.2. So 10 g of sugar is 2.4 teaspoons, 20 g is 4.8 teaspoons, and 40 g is 9.5 teaspoons. Use 4.6 g per teaspoon for packed brown sugar and 2.5 g for powdered sugar instead.

One gram of granulated sugar is 0.24 teaspoons — just under a quarter teaspoon. For powdered sugar, one gram is 0.4 teaspoons, because powdered sugar is far lighter for the same volume.

No. One teaspoon of firmly packed brown sugar weighs about 4.6 g against 4.2 g for granulated — roughly 10% more, because packing compresses out the air. Loosely spooned brown sugar weighs considerably less, which is why recipes specify "packed".

Four grams of granulated sugar is 0.95 teaspoons — very close to one level teaspoon. This is why a 4 g serving is often described as "a teaspoon of sugar" on packaging and in dietary guidance.

Browse every question on the FAQ hub.

Security & privacy

Your measurements stay yours

This is a calculator, not a data business. Here is exactly what that means in practice.

  • Nothing is sent to a server

    Every conversion runs as JavaScript in your browser. The amounts you type never leave the device, so there is nothing for us to log, sell or leak.

  • No account, ever

    There is no signup, no email capture and no paywall on any calculator. You can use every tool on this site without identifying yourself.

  • Encrypted and tracker-light

    The site is served over HTTPS with no mixed content, and carries no advertising trackers or third-party fingerprinting scripts.

Full details in our privacy policy.

Convert your sugar measurement now

Choose granulated, brown or powdered, enter the grams, and get the teaspoon equivalent rounded to something your measuring spoons can actually do.

Back to the calculatorMain Teaspoon to Grams Calculator