Garlic salt is about three parts salt to one part garlic powder by volume. That single number does most of the work in this article, because once you know it, every conversion is arithmetic — and the arithmetic explains why one direction of the swap is easy and the other frequently doesn't work at all.
The deeper issue is control. Salt is the one thing in a dish you adjust against the weight of everything else: 1% of the meat, enough to make the braise taste like itself. Any blend that fuses salt to a flavouring locks both knobs to each other. Turn up the garlic, you turn up the salt. That's fine on popcorn and a problem almost everywhere else.
What's actually in the jar
Commercial garlic salt runs around 3:1 salt to garlic powder by volume, with an anticaking agent in the single-digit percentages. Read your label — ingredients are listed by weight, and salt will be first. If the label lists garlic first, you have something closer to a 1:1 blend and none of the numbers below apply; weigh a teaspoon and work it out yourself.
By weight that 3:1 ratio is more lopsided than it sounds. A teaspoon of fine salt weighs about 6 g. A teaspoon of garlic powder weighs about 2.8 g. So a teaspoon of 3:1 garlic salt is roughly 4.5 g of salt and 0.7 g of garlic powder — around 13% garlic by weight. You are buying salt.
One mechanical detail worth knowing: the salt in garlic salt is milled fine, close to the particle size of the powder, so the two stay mixed. Blend your own with kosher flakes and the coarse crystals will migrate downward in the jar within a week. Shake any garlic salt before use regardless.
Recipe calls for garlic salt, you have garlic powder
This is the easy direction. For every 1 teaspoon of garlic salt, use 1/4 teaspoon garlic powder plus 3/4 teaspoon fine table or sea salt. Scale it straight: 1 tablespoon of garlic salt becomes 3/4 teaspoon garlic powder plus 2 1/4 teaspoons fine salt.
The salt half only holds for fine-grained salt. A teaspoon of garlic salt carries about 4.5 g of sodium chloride, and that's the number to match:
- Fine sea or table salt: 3/4 teaspoon
- Morton kosher: 1 teaspoon, scant
- Diamond Crystal kosher: 1 1/2 teaspoons plus a pinch (about 1.6 tsp)
- By weight, any salt: 4.5 g
Recipe calls for garlic powder, you have garlic salt — and why it usually fails
Going backward, multiply the garlic powder by 4. One teaspoon of garlic powder means 4 teaspoons of garlic salt. Then subtract the salt those 4 teaspoons bring with them: 3 teaspoons, a full tablespoon.
Most recipes don't have a tablespoon of salt to give. Take a standard meatball mix — 1 lb ground beef, 1 teaspoon garlic powder, 1 1/4 teaspoons fine salt. Swapping in 4 teaspoons of garlic salt delivers 3 teaspoons of salt against a 1 1/4 teaspoon budget. You'd be 1 3/4 teaspoons over, which is not a seasoning error, it's an inedible meatball.
The honest version of the rule is a ceiling. Garlic salt can supply, at most, one-third as much garlic powder as the recipe's total salt, measured in the same spoon. Divide the recipe's salt by 3 and that's all the garlic you get. For those meatballs: 1.25 ÷ 3 = 0.42 teaspoons of garlic powder, delivered by 1 2/3 teaspoons of garlic salt, with no additional salt added at all. You land roughly 40% of the intended garlic and the dish will taste thin in exactly the way you'd expect.
Which is the argument for owning the powder. Salt is cheap and you already have it; the jar worth the shelf space is the one that only does the one job.
Rewriting the recipe, step by step
When the amounts get odd — a rub with four spices, a dressing, a batch of sausage — do it on paper rather than in the bowl.
- Convert every garlic salt quantity in the recipe into its two parts: garlic powder = one-quarter of the volume, salt = three-quarters.
- Add the salt from step 1 to any salt the recipe already calls for. That sum is the dish's real salt load. Write it down.
- Sanity-check that sum against weight. For ground meat, sausage, or a burger mix, 1% of the raw weight is a reliable target — 4.5 g, or 3/4 teaspoon fine salt, per pound. For a braise or soup, 0.8–1% of the total weight of everything in the pot, seasoned in two stages.
- Now rebuild: season with plain salt to the number from step 3, and add the garlic powder separately. If the garlic looks low for what you're making, raise it. It costs you nothing now.
Where garlic salt earns its place
On surfaces. Popcorn, oven fries, kettle chips, the outside of a grilled steak after it rests, the top of garlic bread going under the broiler. Anywhere you're seasoning a surface rather than a mass, a pre-blended shaker distributes a tiny quantity of garlic far more evenly than your fingers will — a quarter teaspoon of bare powder on a bowl of popcorn lands in three clumps.
The classic shaker blend for fries is garlic salt plus coarse black pepper at about 4:1. For popcorn, 1 1/4 teaspoons of garlic salt over 10 cups popped, shaken on while the kernels are still slick with fat so it sticks.
It's also the right tool for the table, where someone wants more garlic on their own plate and will take the extra salt as the price. What it is not is a building block. Nothing that reduces — a pan sauce, a tomato sauce that cooks 90 minutes, a glaze going to syrup — should get its garlic from a salt blend, because the salt concentrates as the water leaves and the garlic doesn't gain anything to balance it. Same for any dish already carrying cured weight: bacon, anchovy, parmesan, soy sauce, olives. And never in bread dough, where salt sits at 1.8–2% of flour weight for structural reasons and garlic salt would force you to choose between the right salt and any garlic at all.
Mixing your own, at a ratio you choose
Three parts fine salt to one part garlic powder, shaken in a jar, reproduces the commercial standard. Two to one gives you something noticeably more garlicky that still shakes evenly and still, importantly, has a conversion you can remember: 1 teaspoon of a 2:1 blend is 1/3 teaspoon garlic powder and 2/3 teaspoon salt, about 4 g.
Make 1/4 cup at a time and no more. Garlic powder pulls moisture out of the air, and the finer the salt, the faster the whole thing sets into a cake. A jar with a tight lid, kept away from the stove, holds for a couple of months before you're chipping at it with a knife. Granulated garlic — coarser, closer to fine sand — clumps considerably less and is the better choice if you want a shaker that lives near the grill. Treat powder and granulated as equal by weight; by the teaspoon they differ by perhaps 10%, which matters in a 2-cup batch and not in a dish for four.
The same logic builds onion salt at 3:1, and a decent all-purpose seasoning salt at 3 parts fine salt, 1 part garlic powder, 1 part granulated onion, 1/2 part black pepper, 1/2 part oregano crushed between your palms.
One note on heat
Garlic powder scorches. It's finely divided and carries sugars, and on a bare metal surface above about 400°F it goes from toasty to acrid in under a minute. Garlic salt is partly protected by dilution — three-quarters of what's hitting the pan is salt — which is why it survives on fries better than straight powder does. If you're working with the powder on high heat, get it into fat or onto a wet surface first rather than sprinkling it on dry metal, and keep it off the exposed edges of a sheet pan.
Common questions
My recipe says 2 teaspoons garlic salt. What do I actually add?
1/2 teaspoon garlic powder and 1 1/2 teaspoons fine salt. If you're salting with Diamond Crystal kosher, that's a bit over 3 teaspoons; with Morton kosher, 2 teaspoons scant. The garlic number doesn't change.
If I use 1 teaspoon of garlic salt, how much do I cut the recipe's salt?
Subtract 3/4 teaspoon of fine salt. A recipe calling for 1 1/2 teaspoons salt drops to 3/4 teaspoon once a teaspoon of garlic salt is in the bowl. If you're measuring kosher salt, do the subtraction by weight instead: take 4.5 g off.
Can I just use less garlic salt and add garlic powder to top it up?
Yes, and it's often the cleanest fix. Use garlic salt up to the point where its salt contribution hits your salt target — recipe salt in teaspoons, divided by three, times four — then make up the garlic shortfall with plain powder.
Is garlic salt weaker than garlic powder, or just saltier?
Just diluted. The garlic in it is the same ingredient at a quarter of the concentration. Four teaspoons of garlic salt and one teaspoon of garlic powder deliver the same garlic flavour; one of them also delivers a tablespoon of salt.
Does garlic salt go stale faster?
The garlic fraction fades on the same schedule as the powder, roughly a year before it reads flat, but garlic salt tends to fail mechanically first — it cakes. If the jar has gone solid and smells of nothing much when you crack it open, it's finished.
