# SAT 1600 — sat1600.io

> SAT 1600 is a Digital SAT preparation platform built for international applicants to US universities. Adaptive Bluebook-format practice, country-aware admissions guidance, and study guides for students applying from Korea, China, Vietnam, India, Nigeria, and beyond. Free web access and iOS app.

## What SAT 1600 Offers

- Digital SAT adaptive practice (Bluebook-format, two modules per section, IRT scoring 400–1600)
- AI-powered explanations for Reading & Writing and Math questions (free preview; Pro for unlimited)
- Country-aware SAT prep guidance for international applicants (Korea, China, Vietnam, India, Nigeria, and more)
- SAT vs CSAT (Suneung), SAT vs ACT, SAT vs PSAT disambiguation guides
- Score-target study plans (1200, 1400, 1500, 1600)
- US university SAT score range lookups (Ivy League, top-50, public flagships)
- 2026 SAT test dates and registration deadlines (always current)
- Available on web (sat1600.io) and iOS app

## Free Tools

- SAT Score Calculator (section + composite, IRT-aware): /tools/sat-score-calculator
- SAT Section Score Converter (raw → scaled): /tools/sat-section-score-converter
- Digital SAT Module Timing: /tools/digital-sat-timing
- SAT vs ACT Score Converter: /tools/sat-act-converter
- SAT Countdown Timer: /tools/sat-countdown-timer
- Desmos Practice Mode (built-in calculator drills): /tools/desmos-practice

## Key Content Areas

### Digital SAT Format Explainers (Cluster 1)
- How Digital SAT adaptive routing works: /blog/digital-sat-adaptive-routing
- Why Module 1 mistakes cost more (max-score capping): /blog/module-1-mistakes-cost-more
- IRT scoring explained: same correct count, different scores: /blog/irt-scoring-explained
- Desmos built-in calculator: what's allowed: /blog/desmos-calculator-allowed-uses
- Is Bluebook easier than the real SAT? Honest take: /blog/is-bluebook-easier-than-sat
- Digital SAT timing breakdown (exact minutes per module): /blog/digital-sat-timing-breakdown
- Can you return to a previous module? (flag/review rules): /blog/can-you-return-to-previous-module
- Digital SAT vs paper SAT: what changed: /blog/digital-sat-vs-paper-sat
- 2026 SAT test dates and registration deadlines: /blog/2026-sat-test-dates-deadlines

### International Admissions (Cluster 2)
- SAT vs CSAT (Suneung) — which do you need?: /blog/sat-vs-csat-suneung
- SAT for international students — dates and centers outside the US: /blog/sat-for-international-students
- SAT vs ACT — which to take: /compare/sat-vs-act
- When should a Korean student take the SAT: /blog/when-should-korean-student-take-sat
- When should a Chinese student take the SAT: /blog/when-should-chinese-student-take-sat
- When should a Vietnamese student take the SAT: /blog/when-should-vietnamese-student-take-sat
- SAT plus TOEFL/IELTS in a US application: /blog/sat-and-toefl-ielts-combined-application

### SAT Score Ranges by Country / University
- /sat-score-for/korea, /sat-score-for/china, /sat-score-for/vietnam, /sat-score-for/india, /sat-score-for/nigeria, /sat-score-for/usa

### SAT by Goal
- Ivy League admissions: /sat-goal/ivy-league
- Top-50 US universities: /sat-goal/top-50-us
- Merit scholarships: /sat-goal/scholarship
- Transfer applications: /sat-goal/transfer
- National Merit (PSAT pathway): /sat-goal/national-merit

### SAT Composite Score Pages
- /sat-score/1600, /sat-score/1500, /sat-score/1400, /sat-score/1200, /sat-score/1000, /sat-score/800, /sat-score/600, /sat-score/400

### Question-Type Domain Guides (Cluster 3)
- Reading & Writing — Craft and Structure: /reading-writing/craft-and-structure
- Reading & Writing — Information and Ideas: /reading-writing/information-and-ideas
- Reading & Writing — Expression of Ideas: /reading-writing/expression-of-ideas
- Reading & Writing — Standard English Conventions: /reading-writing/standard-english-conventions
- Math — Algebra: /math/algebra
- Math — Advanced Math: /math/advanced-math
- Math — Problem-Solving and Data Analysis: /math/problem-solving-and-data-analysis
- Math — Geometry and Trigonometry: /math/geometry-and-trigonometry

## Contact

- Website: https://sat1600.io
- iOS App: (coming soon)
- Twitter: @sat9app