どれほど

どんなにN3
どんなに and どれほど both express degree or extent, but どれほど feels more formal and literary while どんなに is common in everyday speech.
どれくらい
どれくらい is the everyday, neutral way to ask about extent, while どれほど is more literary and often used for emphasis or rhetorical questions.
どれだけ
どれほど is more formal and literary than どれだけ, and tends to appear in written or formal speech rather than casual conversation.
どのくらいN5
どれほど is more literary or formal than どのくらい, often appearing in written language or polite speech rather than everyday conversation.

Don't confuse with

それほどN4
どれほど is the question form asking 'how much/to what degree,' while それ程 states an already-known degree, often 'that much (and no more).'

どれ程ほど
Kanji spelling using 程; less common but still encountered.
何程どれほど
rarely-used kanji form
Rare kanji form; may be confused with なにほど.
何どれ程ほど
rarely-used kanji form
Very rare kanji form; not recommended for learners.

Compound of どれ (interrogative) and ほど (extent, degree). The kanji forms are ateji.