Khmer + IPT 

អ (a) = a as in “father.”

អា (aa) = a as in “father.”

អេ (ae) = ay as in “say.”

អែ (ai) = ai as in “eye.”

អៃ (ao) = ow as in “cow.”

អោ (au) = ow as in “how.”

ឪ (au) = ow as in “now”

ប (ba) = b as in “bat.”

ច (cha) = ch as in “chat.”

ឆ (chha) =  A stronger “ch” sound.

ជ (cho) = j as in “joke.”

ឈ (chho) = A stronger “ch” sound.

ដ (da) = d as in “dog.”

ឌ (ddha) = A stronger “d” sound.

អិ (e) = e as in “bed.”

ឬ (li) = e (a short “e” sound)

ឧ (eu) = eu as in “feud.”

គ (ko) = g as in “go”

ហ (ha) = h as in “hello.”

អី (i) = i as in “bit.”

អឹ (ii) = ee as in “see.”

ឫ (ri) = i (a short “i” sound)

ក (ka) = k as in “kite.”

ខ (kha) = kh as in “knight.”

ឃ (kho) = A stronger “kh” sound.

ល (la) = l as in “love.”

ឡ (la) = l as in “love.”

ឭ (le) = le as in “plate.”

ឯ (loe) = la (Similar to “law” without the “w.”)

ឰ (lu) = lu as in “lute.”

ម (ma) = m as in “man.”

ន (na) = n in “note.”

ណ (nna) = n as in “net.”

ង (ngo) = ng in “song”

ញ (nyo) = ny in “canyon.”

អុ (o) = o as in “go.”

អូ (oo) = oo as in “food.”

ឥ (ue) = oo as in “loot.”

ឦ (uue) = oo as in “blue.”

ឩ (oe) = oy as in “boy.”

ឱ (luu) = oo (Similar to a short “oo” sound)

ផ (pha) = p as in “pen.”

ព (po) = p as in “pop.”

ភ (pho) = A stronger “p” sound.

រ (ra) = r as in “red.”

ស (sa) = s as in “sun.”

ត (ta) = t as in “table.”

ឋ (tta) = t as in “top.”

ទ (to) = t as in “top.”

ឍ (dda) – A stronger “t” sound.

ថ (tha) = th as in “thick.”

ធ (tho) = A stronger “th” sound.

អួ (u) = u as in “rule.”

អើ (uu) = oo as in “pool.”

វ (va) = w as in “wonder.”

យ (ya) = y as in “yes.”