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CraftShape

25 Block Circle Generator

Twenty-five blocks is the most requested circle size, and for good reason. It is large enough to look genuinely round, small enough to build in one sitting, and being odd it has a single center block to measure from.

Controls

Dimensions

Dimensions

blocks

This page is preset to one size — change it freely to explore others.

blocks

Always exactly half the diameter. An odd diameter has a half-block radius but still uses one single centre block.

Walls

Walls

Fill mode
blocks
Appearance

Appearance

Block color

Mirror mode shows one quadrant only. Build it, then mirror it left/right and front/back for a perfectly symmetrical shape.

Circle Generator

25 x 25 · 68 blocks

Drag to pan, scroll or pinch to zoom, hover a cell for coordinates.

Build summary

Diameter
25
Radius
12.5
Total blocks
68
Rows used
25

Symmetry check: mirrors left to right and mirrors top to bottom.

Ring built between the outer edge and an inner edge 1 block inside it.

Row-by-row instructions

  1. Row 1:skip 9 spaces, place 7 blocks
  2. Row 2:skip 7 spaces, place 2 blocks, leave 7 spaces, place 2 blocks
  3. Row 3:skip 5 spaces, place 2 blocks, leave 11 spaces, place 2 blocks
  4. Row 4:skip 4 spaces, place 1 block, leave 15 spaces, place 1 block
  5. Row 5:skip 3 spaces, place 1 block, leave 17 spaces, place 1 block
  6. Row 6:skip 2 spaces, place 1 block, leave 19 spaces, place 1 block
  7. Row 7:skip 2 spaces, place 1 block, leave 19 spaces, place 1 block
  8. Row 8:skip 1 space, place 1 block, leave 21 spaces, place 1 block
  9. Row 9:skip 1 space, place 1 block, leave 21 spaces, place 1 block
  10. Row 10:place 1 block, leave 23 spaces, place 1 block
  11. Row 11:place 1 block, leave 23 spaces, place 1 block
  12. Row 12:place 1 block, leave 23 spaces, place 1 block
  13. Row 13:place 1 block, leave 23 spaces, place 1 block
  14. Row 14:place 1 block, leave 23 spaces, place 1 block
  15. Row 15:place 1 block, leave 23 spaces, place 1 block
  16. Row 16:place 1 block, leave 23 spaces, place 1 block
  17. Row 17:skip 1 space, place 1 block, leave 21 spaces, place 1 block
  18. Row 18:skip 1 space, place 1 block, leave 21 spaces, place 1 block
  19. Row 19:skip 2 spaces, place 1 block, leave 19 spaces, place 1 block
  20. Row 20:skip 2 spaces, place 1 block, leave 19 spaces, place 1 block
  21. Row 21:skip 3 spaces, place 1 block, leave 17 spaces, place 1 block
  22. Row 22:skip 4 spaces, place 1 block, leave 15 spaces, place 1 block
  23. Row 23:skip 5 spaces, place 2 blocks, leave 11 spaces, place 2 blocks
  24. Row 24:skip 7 spaces, place 2 blocks, leave 7 spaces, place 2 blocks
  25. Row 25:skip 9 spaces, place 7 blocks

Block counts for a 25 block circle

  • Hollow outline (1 block wall): 68 blocks
  • Filled disc: 489 blocks
  • Widest row: 25 blocks
  • Center: one single center block

Building advice for this size

  • Stand on the center block and count 12 blocks outwards to find each of the four widest points.
  • The blueprint's longest run is 9 blocks wide at the top and bottom of the ring — get those right and the curve reads correctly from the ground.
  • This size suits a round tower base, a colosseum wall, a farm plot or the footprint for a 25 wide dome.
  • If you plan to build a matching dome, keep the diameter at 25 so the dome crown sits on one block.

Other circle sizes

Smaller: 20 block circle. Larger: 30 block circle. Or open the full circle generator for any diameter up to 256.

Frequently asked questions

How many blocks are in a 25 block circle?
The hollow ring uses 68 blocks and the filled circle uses 489 blocks. The blueprint above recalculates both instantly if you change the diameter or wall thickness.
Why is 25 such a popular circle size?
It is the smallest odd diameter that still looks convincingly round from ground level, and one stack of blocks plus a few extras covers the whole outline.
How do I turn a 25 block circle into a sphere?
Use the sphere generator with the same 25 block diameter. The middle layer of that sphere is exactly this circle, so you can start from the ring you already built.

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