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Step 1 self-assessment estimator

UWSA 1 Step 1 Score Calculator: Misses to a Three-Digit Score

Enter how many of the 160 questions you missed. The UWSA 1 Step 1 score calculator returns an estimated three-digit score, a pass-probability read, plus the reason a UWorld scale never matches an NBME one.

160 questionsPassing ≈ 196Runs in your browser

Not affiliated with, endorsed by, or sponsored by the NBME® or USMLE®. Educational estimates only.

Enter your result

Any way you have it — wrong answers, percent correct, or a score you were already given.

= 85.0% correct • 136 correct

Enter your result and press Calculate to see your estimated three-digit score, pass probability, and what the result means.

Quick take on this form

The model behind this UWSA 1 Step 1 score calculator is one straight line: 294 for a clean paper, minus about 1.1 points per miss out of 160. Eighty-nine misses lands on 196, the passing standard, and that is only 44.4% correct, where the board-written forms want 62.5% to 65.5%.

UWSA 1 score reference

Estimated three-digit score and pass probability at each wrong-answer count for UWorld Self-Assessment 1 (Step 1).

UWSA 1 wrong answers to estimated score reference
WrongCorrect %Est. scorePass prob.
0100.0%29499%
596.9%28999%
1093.8%28399%
1590.6%27899%
2087.5%27299%
2584.4%26799%
3081.3%26199%
3578.1%25699%
4075.0%25099%
4571.9%24499%
5068.8%23999%
5565.6%23399%
6062.5%22899%
6559.4%22299%
7056.3%21798%
7553.1%21194%
8050.0%20686%
8546.9%20067%
9043.8%19546%
9540.6%18922%
10037.5%1839%
10534.4%1784%
11031.3%1721%
11528.1%1671%
12025.0%1611%
12521.9%1561%
13018.8%1501%
13515.6%1451%
14012.5%1391%
1459.4%1341%
1506.3%1281%
1553.1%1221%
1600.0%1171%

Estimates only. Rows step by five wrong answers; your exact result is calculated above.

How the UWSA 1 Step 1 score calculator converts your misses

The UWSA 1 score conversion for Step 1 is one rule: score = round(294.38 − 1.109 × wrong answers) over 160 questions. The UWSA 1 Step 1 score calculator applies it flat.

No curve, no per-system weighting, no adjustment for where the misses fell. Every miss costs the same 1.109 points in the UWSA 1 Step 1 score calculator.

Nine questions are worth roughly ten points at 40 misses and at 120 alike, which makes the UWSA 1 Step 1 score calculator easy to run backwards.

Pick a target, subtract it from 294.38, divide by 1.109, and you have your allowance. The UWSA 1 Step 1 score calculator does that arithmetic for you.

A single linear fit is all the circulated UWorld data supports, so the UWSA 1 Step 1 score calculator claims no curve it cannot justify.

Got a number? Line it up against your NBME forms, then see how each conversion was built for the coefficients inside this UWSA 1 Step 1 score calculator.

UWSA 1 Step 1 score calculator chart, and converting offline

Anchors first; the full UWSA 1 conversion chart sits above. The UWSA 1 Step 1 score calculator returns 294 for a clean paper, 272 at 20 misses, 261 at 30, 250 at 40.

Further down, 49 misses is 240, 58 is 230, 67 is 220 and 72 is 215. Every row between anchors sits in the UWSA 1 Step 1 score calculator table.

Lower still: 80 misses is 206, 89 is 196, 100 is 183 and 110 is 172. The UWSA 1 Step 1 score calculator does not stop at the passing line.

Percent correct works too. Hand 75% to the UWSA 1 Step 1 score calculator and it returns 250; 60% gives 223, 50% gives 206, 44.4% gives 196.

Pass probability rides a logistic curve centred on 196, so the UWSA 1 Step 1 score calculator reads 97% at 72 misses, 86% at 80 and 50% at 89.

No UWorld report is needed. A miss count out of 160 is the whole input, so the UWSA 1 Step 1 score calculator works after your window expires.

What a good result on this assessment is

Step 1 is pass/fail, so a good UWSA 1 predicted Step 1 score is one with margin, and the UWSA 1 Step 1 score calculator reads that margin in UWorld units.

Above 230 — 58 misses or fewer, about 64% correct — the UWSA 1 Step 1 score calculator says breadth is no longer your constraint.

From 215 to 229, 59 to 72 misses, the cushion is genuine. Two or three systems usually account for the gap the UWSA 1 Step 1 score calculator shows.

From 196 to 214 you are nominally passing on a scale students report as generous — the weakest UWSA 1 Step 1 score calculator result anyone should call safe.

The boundary is one question wide: 88 misses is 197, 89 is 196, 90 is 195. Read any UWSA 1 Step 1 score calculator estimate near 196 as unresolved.

Sit the form early to mid-block, timed, in one session. An early UWSA 1 Step 1 score calculator reading leaves weeks to act on what it exposes.

How accurate the UWSA 1 Step 1 score calculator is

An estimate from an independent model, not an official result. UWorld publishes no conversion table, so the UWSA 1 Step 1 score calculator is fitted to student-reported data.

One straight line assumes the relationship holds at 40 misses and at 120. At the extremes the UWSA 1 Step 1 score calculator cannot say how far it drifts.

No confidence interval is configured for the Step 1 UWorld forms, so the UWSA 1 Step 1 score calculator prints a point estimate. Widen it mentally.

Students report UWorld self-assessments reading a few points generous, and no citable measurement exists, so the UWSA 1 Step 1 score calculator applies no correction.

Competing tools publish specific overprediction figures. Those belong to whoever computed them, and this UWSA 1 Step 1 score calculator restates none of them.

Treat it as an upper marker: weight it with everything else, sit the second UWorld assessment, and let the set decide, not one UWSA 1 Step 1 score calculator run.

Frequently asked questions

Straight answers about what this estimate can and cannot tell you.

How many questions can I miss on the UWSA 1 Step 1 score calculator and pass?

About 89 of the 160. The UWSA 1 Step 1 score calculator puts 88 misses at 197, 89 at 196, the passing standard, and 90 at 195.

One question straddles the line, so confirm any UWSA 1 Step 1 score calculator result near 196 on a separate form before booking a date.

What percent correct does the UWSA 1 Step 1 score calculator treat as passing?

44.4% correct, or 89 misses out of 160 — what the UWSA 1 Step 1 score calculator needs for the 196 passing standard.

Beside an NBME form that looks alarming: the same 196 is 62.5% to 65.5% correct there. Compare what the UWSA 1 Step 1 score calculator returns, not percentages.

Why does the UWSA 1 Step 1 score calculator disagree with my NBME forms?

Different vendor, different item pool, different calibration, 160 questions against 200. The UWSA 1 Step 1 score calculator is not reading the same instrument.

Some disagreement is expected. When your forms scatter, read the range they span rather than the single UWSA 1 Step 1 score calculator figure you like most.

Does the UWSA 1 Step 1 score calculator correct for UWorld overprediction?

No. Students report UWorld self-assessments reading generous, but no verifiable measurement of that gap exists for the UWSA 1 Step 1 score calculator to apply.

An invented correction beats none only in appearance, so the UWSA 1 Step 1 score calculator leaves the tendency alone and asks you to read generously.

When should I sit UWorld Self-Assessment 1 and run the UWSA 1 Step 1 score calculator?

Early to mid-block, once a content pass is finished, so the UWSA 1 Step 1 score calculator measures ability rather than unfamiliarity.

Sat there it gives a hard baseline with weeks left to respond. Sat in the final days, a UWSA 1 Step 1 score calculator run mostly generates anxiety.

Can I use the UWSA 1 Step 1 score calculator offline, without a UWorld report?

Yes. The only input is how many of the 160 you missed, so the UWSA 1 Step 1 score calculator handles an expired window or a paper tally.

Percent correct works too. Nothing you type into the UWSA 1 Step 1 score calculator reaches UWorld, and no account is needed.

Is the UWSA 1 Step 1 score calculator pass probability a measured pass rate?

No. The UWSA 1 Step 1 score calculator reads a logistic curve centred on 196, so a score at the standard sits near 50% by construction.

It expresses distance from the line and nothing more. No cohort was tracked to produce the UWSA 1 Step 1 score calculator figure.

Is the UWSA 1 Step 1 score calculator the official UWorld conversion?

No. UWorld publishes no conversion table, so no third-party tool, this UWSA 1 Step 1 score calculator included, can offer an official one.

The UWSA 1 Step 1 score calculator states its coefficients and shows its arithmetic rather than implying authority. Not affiliated with, endorsed by, or sponsored by the NBME® or USMLE®.

Cross-check this estimate against another form, or read how the models are built.

Share this calculator

Send it to a study partner sitting the same form, or print a copy once you have run your numbers.

Eighty-nine wrong of 160 still reads 196 here, and the UWSA 1 Step 1 score calculator needs no account.

Not affiliated with, endorsed by, or sponsored by the NBME® or USMLE®. Educational estimates only.