The limits that are actually enforced
Every one of these is a hard stop in the portal, not a guideline. The text box refuses the next keystroke, or the submission fails validation — and in the case of UCAS, the count includes characters most people forget about.
Common App (US)
The personal essay is capped at 650 words with a 250-word minimum. The Common App text box will not accept a 651st word. Admissions readers and counselors broadly agree the sweet spot is 500–650 — coming in at 300 words reads as though you had nothing to say. The Additional Information section is separate, also 650 words, and most member colleges add supplemental essays of 100–400 words each on top.
UCAS (UK) — 2026 entry onwards
The single free-form personal statement is gone. From 2026 entry, UCAS splits it into three questions sharing one 4,000-character budget, spaces included, with a 350-character minimum per answer. The questions are: why you want to study the course; how your qualifications and studies have prepared you; and what else you have done to prepare outside education, and why it's useful. The old 47-line limit no longer applies, and any counter still enforcing it is out of date. Practical consequence: 4,000 characters is roughly 600–700 words, and it is one shared pot — a long answer to question one leaves less room for question three.
University of California PIQs (US)
You answer four Personal Insight Questions out of eight, each capped at 350 words. There is no minimum, but UC explicitly states all four answers are weighted equally, so a 120-word answer beside three 340-word answers costs you. UC does not use the Common App — these are entirely separate essays.
Other limits worth knowing
- Coalition / Scoir essay: 500–650 words
- UCAS reference: written by your school, not you
- OUAC (Ontario, Canada) supplementary: typically 250–500 words per prompt
- Australian universities: most undergraduate admission is by ATAR with no essay; scholarship and early-entry schemes commonly ask for 300–500 words
- Graduate statement of purpose: 500–1,000 words, or 1–2 pages if stated in pages
- Workday and Taleo free-text boxes: very often a silent 2,000-character cap that truncates without warning
Words or characters — they are counted differently
A word count treats any run of non-space characters as one word, so a hyphenated term counts once. A character count includes spaces, punctuation, line breaks and, on UCAS, the blank line between paragraphs. Pasting from Word can also carry smart quotes and non-breaking spaces that still consume characters. The safe move is to leave 50–100 characters of headroom rather than submitting at exactly 4,000.
Nothing you type leaves your device
Every count here runs in your browser. Drafts are not uploaded, stored or sent anywhere — which also means nothing is saved if you close the tab, so keep your master copy in a document.
FAQ
Is the Common App 650-word limit a hard stop?
Yes. The text box will not accept a 651st word, and there is a 250-word minimum at the other end. Admissions readers and counselors broadly treat 500 to 650 words as the range that reads like a finished essay rather than an unfinished one.
Does the UCAS 4,000-character limit include spaces?
Yes — spaces, punctuation and line breaks all count, against one shared 4,000-character budget spanning all three 2026-entry questions, with a 350-character minimum per answer. The old 47-line rule no longer applies, and any counter still enforcing it is out of date.
How many words is 4,000 characters?
Roughly 600 to 700 words of ordinary English prose, but treat that only as a rough guide for planning. UCAS validates characters, not words, so the character figure is the one that decides whether your application will submit.
What limits apply to Canadian and Australian applications?
Most Australian undergraduate entry is ATAR-based with no essay; scholarship and early-entry schemes usually ask for 300 to 500 words. Ontario's OUAC supplementary applications typically run 250 to 500 words per prompt. Use the Custom preset for both, and check the portal itself — these vary by institution.