Multiplication Chart (1 to 20)

A full multiplication chart from 1 to 20 in one reference grid, with the patterns that make the larger numbers easier to learn.

A 20×20 chart extends the standard times table to cover products up to 400. It is the reference chart used in middle school and above, where questions start involving two-digit factors, area problems and algebra. The diagonal still carries the perfect squares (16, 25, 36 … 400), and the grid remains symmetric, so the two-digit half follows exactly the same rules as the tables learned earlier.

×1234567891011121314151617181920
11234567891011121314151617181920
2246810121416182022242628303234363840
33691215182124273033363942454851545760
448121620242832364044485256606468727680
55101520253035404550556065707580859095100
66121824303642485460667278849096102108114120
7714212835424956637077849198105112119126133140
881624324048566472808896104112120128136144152160
9918273645546372819099108117126135144153162171180
10102030405060708090100110120130140150160170180190200
11112233445566778899110121132143154165176187198209220
121224364860728496108120132144156168180192204216228240
1313263952657891104117130143156169182195208221234247260
1414284256708498112126140154168182196210224238252266280
15153045607590105120135150165180195210225240255270285300
16163248648096112128144160176192208224240256272288304320
171734516885102119136153170187204221238255272289306323340
181836547290108126144162180198216234252270288306324342360
191938577695114133152171190209228247266285304323342361380
2020406080100120140160180200220240260280300320340360380400

Tip: use your browser's print dialog (Ctrl/Cmd P) — the grid prints clean and full-width on one page.

How to read this table

Find the first number down the left-hand column and the second number along the top row. The cell where that row and column meet is the product. So 7 × 8 = row 7, column 8 = 56. Because multiplication is commutative, the grid is symmetric about the diagonal — 7 × 8 and 8 × 7 land on the same product, which is why only half the grid really needs memorising.

Patterns worth noticing

PatternWhat it looks like
SquaresDown the diagonal: 1, 4, 9, 16, 25, 36, 49, 64, 81, 100, 121, 144
NinesThe digits of every multiple of 9 add up to 9 (9, 18, 27 … 108 → 1+0+8 = 9)
FivesEvery multiple of 5 ends in 0 or 5
Elevens (1-9)Doubled digits: 11, 22, 33 … 99
Even × evenAlways lands on the same even column and row — useful for checking a guess

Frequently Asked Questions

Where does a 1-20 multiplication chart get used?

Two-digit multiplication, area and volume problems, fractions with denominators up to 20, and algebra work. It is the practical upper limit for a printed wall chart — beyond 20 the grid gets too dense to scan.

How is a 20×20 chart different from a 12×12 table?

Only in size. The 20×20 adds rows and columns 13 to 20, so it covers products up to 400. Everything already true of the smaller table — the symmetry, the squares on the diagonal — still holds.

What is the fastest way to use a 20×20 chart?

Locate the larger factor down the left column, slide across to the smaller factor in the top row, and read the meeting cell. For 17 × 14 that is row 17, column 14 = 238.

Do I need to memorise the 13 to 20 rows?

No. Most curricula require fluent recall only up to 12. Rows 13-20 are usually looked up or worked out from known facts (17 × 14 = 17 × 10 + 17 × 4).

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