TTKTheTextKit

Video Resolution Calculator

Pick an aspect ratio, such as 16:9, 9:16, 4:3, 1:1 or 2.39:1, and the calculator lists the width and height at each standard step from 144p to 8K, with the megapixel count and how far each size is from the exact ratio. Choose whether the sides must be even or a multiple of 4, 8 or 16 for your encoder. A second table lists every whole-pixel size that has exactly your ratio, between a smallest and a largest side that you set. Everything runs in your browser.

Sides must be

Standard resolutions at 16:9

NameWidth x heightMegapixelsRatio error
144p256 x 1440.04exact
240p426 x 2400.10.156%
360p640 x 3600.23exact
480p854 x 4800.410.078%
720p1280 x 7200.92exact
1080p1920 x 10802.07exact
1440p2560 x 14403.69exact
2160p (4K UHD)3840 x 21608.29exact
4320p (8K UHD)7680 x 432033.18exact

Sizes with exactly this ratio

The smallest whole-pixel size of this ratio is 16 x 9. Every multiple of it keeps the ratio exact. 107 sizes in your range:

Width x heightMultiple
448 x 25228
480 x 27030
512 x 28832
544 x 30634
576 x 32436
608 x 34238
640 x 36040
672 x 37842
704 x 39644
736 x 41446
768 x 43248
800 x 45050
832 x 46852
864 x 48654
896 x 50456
928 x 52258
960 x 54060
992 x 55862
1024 x 57664
1056 x 59466
1088 x 61268
1120 x 63070
1152 x 64872
1184 x 66674
1216 x 68476
1248 x 70278
1280 x 72080
1312 x 73882
1344 x 75684
1376 x 77486
1408 x 79288
1440 x 81090
1472 x 82892
1504 x 84694
1536 x 86496
1568 x 88298
1600 x 900100
1632 x 918102
1664 x 936104
1696 x 954106
1728 x 972108
1760 x 990110
1792 x 1008112
1824 x 1026114
1856 x 1044116
1888 x 1062118
1920 x 1080120
1952 x 1098122
1984 x 1116124
2016 x 1134126
2048 x 1152128
2080 x 1170130
2112 x 1188132
2144 x 1206134
2176 x 1224136
2208 x 1242138
2240 x 1260140
2272 x 1278142
2304 x 1296144
2336 x 1314146
2368 x 1332148
2400 x 1350150
2432 x 1368152
2464 x 1386154
2496 x 1404156
2528 x 1422158
2560 x 1440160
2592 x 1458162
2624 x 1476164
2656 x 1494166
2688 x 1512168
2720 x 1530170
2752 x 1548172
2784 x 1566174
2816 x 1584176
2848 x 1602178
2880 x 1620180
2912 x 1638182
2944 x 1656184
2976 x 1674186
3008 x 1692188
3040 x 1710190
3072 x 1728192
3104 x 1746194
3136 x 1764196
3168 x 1782198
3200 x 1800200
3232 x 1818202
3264 x 1836204
3296 x 1854206
3328 x 1872208
3360 x 1890210
3392 x 1908212
3424 x 1926214
3456 x 1944216
3488 x 1962218
3520 x 1980220
3552 x 1998222
3584 x 2016224
3616 x 2034226
3648 x 2052228
3680 x 2070230
3712 x 2088232
3744 x 2106234
3776 x 2124236
3808 x 2142238
3840 x 2160240

Video sizes are named by the shorter side, so 1080p means 1080 pixels on the short side whether the frame is 1920 x 1080 or 1080 x 1920. At 16:9 the long side is exact for most steps, but 480p would be 853.33 pixels wide, so it is rounded to the nearest multiple you choose and the table shows the small ratio error. Many video codecs, including H.264 with the common 4:2:0 color format, need even sides, and some encoders work in blocks of 8 or 16, so a multiple of 16 avoids padding inside the encoder. The second table lists the sizes that need no rounding at all. Everything runs in your browser.

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About the Video Resolution Calculator

Video sizes are named by the shorter side, so 1080p means 1080 pixels on the short side whether the frame is 1920 x 1080 or 1080 x 1920. For a ratio, the long side is the short side times the ratio, rounded to the multiple you choose. At 16:9 this gives 1280 x 720 for 720p, 1920 x 1080 for 1080p, 3840 x 2160 for 4K UHD and 7680 x 4320 for 8K UHD, all exact. 480p would be 853.33 pixels wide, so it becomes 854 x 480 with even sides (0.078% off the exact ratio) or 848 x 480 as a multiple of 16. A 9:16 vertical video at 1080p is 1080 x 1920, a 4:3 video at 480p is 640 x 480, and a 21:9 ratio taken as 7:3 gives 2520 x 1080. Many video codecs, including H.264 with the common 4:2:0 color format, need even sides, and some encoders work in blocks of 16 pixels, so a multiple of 16 avoids padding inside the encoder. The second table helps when you want no rounding at all: for 16:9 only multiples of 16 x 9 are exact, such as 640 x 360 or 1280 x 720, and with sides limited to a multiple of 8 the sizes between 240 and 3840 start at 512 x 288, 640 x 360 and 768 x 432.

What does 1080p mean?▾

It means 1080 pixels on the shorter side of the frame. At 16:9 that is 1920 x 1080, and for a vertical 9:16 video it is 1080 x 1920.

Why is 480p 854 x 480 and not 853 x 480?▾

At 16:9 the width would be 853.33 pixels. Rounding to 853 gives an odd width, which many encoders reject, so 854 is the nearest even width. It is 0.078% off the exact ratio.

What size is 4K?▾

4K UHD at 16:9 is 3840 x 2160. Some cinema standards use 4096 pixels across, which is a different aspect ratio, so type your own ratio if you work with those.

Which sizes have exactly 16:9?▾

Only multiples of 16 x 9: 160 x 90, 320 x 180, 640 x 360, 1280 x 720, 1920 x 1080 and so on. The exact-size table lists them for any ratio.

Is my data uploaded?▾

No. The calculation runs in your browser and nothing you enter is sent anywhere.