Grading Scale Chart — Free A–F Letter Grade Table

Introduction

Letter grades, percentage cutoffs, and GPA points describe the same performance in different formats — yet students, parents, and teachers constantly translate between them. A scholarship form asks for GPA while the report card shows letters. A rubric lists percentage bands while the registrar stores grade points. Memorizing every cutoff from A+ through F is impractical, and school handbooks bury the table three clicks deep in a PDF.

Certoflow's Grading Scale Chart displays the standard US A–F scale with percentage ranges and 4.0 GPA equivalents in one scannable table. It uses the same thresholds that power the Grade Calculator, GPA Calculator, and Easy Grader on this site — so calculator output and chart reference stay consistent. The page runs entirely in your browser with no sign-up and nothing to download.

For interactive conversion between formats, use the Grade Scale Converter. For scoring a stack of papers against a point total, the Easy Grader applies this scale automatically.

What this tool does

The chart presents three columns for each letter grade:

Column	Content
Letter	Grade symbol from A+ through F
Percent range	Minimum and maximum percentage for that letter
GPA (4.0)	Grade points on the standard four-point scale

Rows cover the full US scale with plus and minus steps:

Letter	Percent range	GPA
A+	97–100%	4.0
A	93–96%	4.0
A−	90–92%	3.7
B+	87–89%	3.3
B	83–86%	3.0
B−	80–82%	2.7
C+	77–79%	2.3
C	73–76%	2.0
C−	70–72%	1.7
D+	67–69%	1.3
D	63–66%	1.0
D−	60–62%	0.7
F	Below 60%	0.0

A footnote reminds you that individual schools may use different cutoffs — always verify against your syllabus.

How it works

The chart is a static reference rendered from Certoflow's shared GRADING_SCALE_ROWS data — the same source that maps percentages to letters in every education calculator on the site. When the Average Grade Calculator shows "88.8% (B+)," that letter comes from the B+ row (87–89%) in this table.

GPA values follow the common US convention where A and A+ both map to 4.0, with minus grades stepping down by 0.3 and plus grades stepping up by 0.3 or 0.4 depending on the band. This is a reference scale, not an official transcript — your institution's registrar may apply different grade-point rules for honors weighting or pass/fail courses.

No calculation input is required. The table loads client-side and remains available after the initial page load for offline bookmarking.

Real-world examples

Checking calculator output

A student runs the Points Grade Calculator and sees 86.4% (B). They open the chart to confirm B spans 83–86% and that 86.4% sits at the top of the B band, not yet B+.

Parent-teacher conference

A parent sees "C+" on a progress report and looks up the chart: 77–79%, GPA 2.3. That context frames a conversation about moving into the B− range (80–82%).

New teacher onboarding

A first-year instructor bookmarks the chart while learning the district's alignment with standard cutoffs before memorizing them.

Scholarship application

An application requires "GPA on a 4.0 scale." A student with mixed letter grades uses the chart alongside the GPA Calculator to estimate eligibility before requesting an official transcript.

International student comparison

A student familiar with percentage-only grading in another country maps US letter bands to understand what "B average" means for graduate program requirements.

Common mistakes

Treating this chart as universal law. Many high schools use 90% for an A; some colleges use 93%. Your syllabus overrides any generic table.

Confusing weighted and unweighted GPA. This chart shows standard 4.0 points per letter. Honors or AP weighting adds extra points not reflected here.

Rounding across band boundaries. An 89.6% might display as 90% in some systems, jumping from B+ to A−. Certoflow calculators use the raw percentage before display rounding.

Using letter GPA for pass/fail courses. P/F grades do not appear on this scale and typically do not factor into GPA.

Expecting the chart to convert scores. It is a lookup table, not a calculator. Enter values in the Grade Scale Converter for interactive translation.

Use cases

Quick cutoff lookup — Confirm whether 92.5% is A− or A without opening a handbook.

Calculator cross-reference — Verify that Certoflow tool output aligns with the displayed scale.

Classroom poster substitute — Project or screenshot the table during grade discussions.

Advising sessions — Counselors show students how many percentage points separate current standing from the next letter band.

Content consistency — Teachers referencing Certoflow tools know students see the same scale everywhere on the site.

FAQ

Is this scale universal?

This reflects a common US standard used across Certoflow education tools. Your school may use different cutoffs — always check your syllabus or student handbook.

Can I convert scores with this chart?

The chart is read-only reference. Use the Grade Scale Converter for interactive letter ↔ percent ↔ GPA conversion.

Why do A and A+ both show 4.0 GPA?

Many US institutions cap GPA contribution at 4.0 for both A and A+ while still distinguishing them on transcripts. Weighted honors scales may differ.

Does F include 0%?

Yes. Any percentage below 60% maps to F with 0.0 GPA on this scale.

How does this relate to the Easy Grader?

The Easy Grader applies these same cutoffs when you enter "points earned out of points possible" for a single assignment. The chart shows the full scale at once.

Are any grades stored?

No. The chart is static content rendered in your browser. No account or data entry is involved.

Can I use this for college plus/minus policies?

Most US colleges use plus/minus bands similar to this table, but cutoffs vary. Treat this as a starting reference and confirm with your registrar.