ih/ɪ/
Drop your jaw slightly with relaxed lips. Touch the tongue tip behind the bottom front teeth and arch the top-front toward the roof.
How to pronounce impact in American English
IHM·pakt
Start here
Americans pronounce impact as IHM-pakt (/ˈɪmpækt/). Stress falls on the first syllable — keep everything else short and quick. You'll hear it in sentences like "The bank balance had a dramatic impact on capital" or "She studies the impact of human activity on the environment" — more examples below.
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Sound by sound
Every sound in "impact".
2 syllables, 6 sounds. Tap a syllable to jump to its row, then explore each sound's mouth shape and how it's made.
m/m/
Press your lips together. Air flows through your nose. Vocal cords vibrate.
p/p/
Press your lips together to stop the air, then release. No vocal cord vibration.
a/æ/
Drop the jaw noticeably. Keep the body of the tongue low and forward, and don't let the back of the tongue raise toward the soft palate. Pull the lip corners back slightly, almost a starting smile.
k/k/
Raise the back of your tongue to touch the soft palate (velum). Stop the air, then release.
t/t/
Touch the tip or front edge of your tongue to the roof of your mouth just behind your teeth. Keep your jaw relaxed. Stop the air, then release with a puff.
In real conversation
Hear "impact" in the wild.
Click any sentence to see the full breakdown — every link, every reduction, every flap-T.
"Carbon footprint measures the impact of human activities on the environment."
KAR·buhn FUUT·prihnt MEH·zherz dhee IHM·pakt uhv HYOO·muhn ak·TIH·vuh·deez ahn dhee uhn·VAHY·ruhn·muhnt
"She runs on the elliptical machine to reduce impact on her knees."
shee RUHNZ ahn dhee uh·LIHP·tuh·kuhl muh·SHEEN tuh ruh·DOOS IHM·pakt ahn her NEEZ
"She studies the impact of human activity on the environment."
shee STUH·deez dhee IHM·pakt uhv HYOO·muhn uhk·TIH·vuh·tee ahn dhee uhn·VAHY·ruhn·muhnt
"The bank balance had a dramatic impact on capital."
dhuh BANGK BA·luhns had uh druh·MA·duhk IHM·pakt ahn KA·puh·tuhl
"Volunteer organizations make a significant impact in their communities."
vah·luhn·TEER or·guh·nuh·ZAY·shuhnz MAYK uh suhg·NIH·fuh·kuhnt IHM·pakt ihn dhair kuh·MYOO·nuh·teez
"Your leadership skills have made a noticeable impact on the department."
yer LEE·der·shuhp SKIHLZ huhv MAYD uh NOH·duh·suh·buhl IHM·pakt ahn dhuh duh·PART·muhnt
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Watch out
Common pronunciation mistakes in American English.
The textbook way isn't wrong — it's just not how anyone actually says it.
01
Releasing the final consonant with a puff of air.
In "impact", the "t" is not released — the articulators get into position but hold without the burst of air. Air stops but there's no release burst — the articulators hold position.
impact→IHM·pakt
02
Stressing the wrong syllable.
Stress falls on the first syllable, not the others. Stretch IHM — keep everything else short and quick.
ihm·PAKT→IHM·pakt
Questions
Questions people ask about this.
How is "impact" stressed in American English?
Stress falls on the first syllable — say "IHM" with a longer, fuller vowel and keep every other syllable short and quick. The respell "IHM-pakt" marks the stressed syllable in capitals so the rhythm is easy to read at a glance.
Is the American pronunciation of "impact" different from British English?
American English uses different vowel shapes, a relaxed retroflex R, and connected-speech tricks like flap-T and glottal-stop T that British Received Pronunciation generally avoids. The respell "IHM-pakt" reflects the casual American form; British dictionaries typically print a citation form with crisper consonants and different vowel choices.
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