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#redirect [[Dimensions]]
'''Hammer Units''' are the [[Dimensions]] used by the {{hammer|4.1}} Editor for {{src|4.1}} Engine. Most games use different scales but the most common are '''1:12''' & '''1:16''' for Player Models & Geometry/Props respectively.
== Scales ==
=== Map Scales ===
==== 1 Foot to 12 Hammer Units ====
Usually for Human Characters and other miscellaneous models.
{| class="standard-table" style="text-align:left; float:left"
|+ style="color:silver" |
|-
! Grid !! Imperial !! Metric !! style="width:16em" | Notes
|-
| ~0.3937 || ~0.39″ || 1 cm  || 1 Centimeter <sup>'''†'''</sup>
|-
| 1 || 1″ || 2.54 cm  || 1 Inch
|-
| 2 || 2″ || ~5 cm    ||
|-
| 4 || 4″ || ~10.1 cm ||
|-
| 8 || 8″ || ~20 cm  ||
|-
| 12 || 1′ || ~30.4 cm || 1 Foot
|-
| 16 || 1′ 4″ || ~40.6 cm ||
|-
| 24 || 2′  || ~61 cm  ||
|-
| 28 || 2′ 4″ || ~71 cm ||
|-
| 32 || 2′ 8″ || ~81 cm ||
|-
| 36 || 3′ || ~91 cm ||
|-
| ~39.37008 || ~3′ 3″ || 1 m || 1 Meter
|-
| 45 || 3′ 9″ || ~1.14 m ||
|-
| 48 || 4′ || ~1.21 m ||
|-
| 62 || 5′ 2″ || ~1.57 m  ||
|-
| 64 || 5′ 4″  || ~1.63 m ||
|-
| 72 || 6′     || ~1.83 m ||
|-
| 96 || 8′     || ~2.44 m ||
|-
| 108 || 9′      || ~2.74 m ||
|-
| 128 || 9′ 8″  || ~3.25 m ||
|-
| 160 || 13′ 4″  || ~4.06 m  ||
|-
| 192 || 16′  || ~4.88 m  ||
|-
| 256 || 21′ 4″  || ~6.5 m  ||
|-
| 512 || 42′ 8″  || ~13 m    ||
|-
|colspan="4"|''<sup>'''†'''</sup> Too small to be used in-editor (Except with Microgrid in {{h++|4}})''
|}
{{clr}}
 
==== 1 Foot to 16 Hammer Units ====
Usually for Map Geometry & Props.
{| class="standard-table" style="text-align:left; float:left"
|+ style="color:silver" |
|-
! Grid !! Imperial !! Metric !! style="width:16em" | Notes
|-
| ~0.5249  || ~0.3937″ || 1 cm    || 1 Centimeter <sup>'''†'''</sup>
|-
| 1     || 0.75″ || 1.905 cm ||
|-
| ~1.3333  || 1″ || 2.54 cm  || 1 Inch
|-
| 2     || 1.5″ || 3.81 cm  ||
|-
| 4     || 3″ || 7.62 cm  ||
|-
| 8     || 6″ || 15.24 cm ||
|-
| 12 || 9″     || 22.86 cm ||
|-
| 16 || 1′     || 30.48 cm || 1 Foot
|-
| 20 || 1′ 3″    || 38.1 cm  ||
|-
| 24 || 1′ 6″    || 45.72 cm ||
|-
| 28 || 1′ 9″ || 53.34 cm ||
|-
| 32 || 2′     || 60.96 cm ||
|-
| 36 || 2′ 3″ || 68.58 cm ||
|-
| 40 || 2′ 6″ || 76.2 cm ||
|-
| 44 || 2′ 9″ || 83.82 cm ||
|-
| 45 || 2′ 9.75″ || 85.725 cm||
|-
| 48 || 3′ || 91.44 cm ||
|-
| ~52.4934  || ~39.37′ || 1 m     ||
|-
| 56 || 3′ 6″ || ~1.07 m  ||
|-
| 64 || 4′      || ~1.22 m  ||
|-
| 72 || 4′ 6″ || ~1.37 m ||
|-
| 80 || 5′     || ~1.52 m ||
|-
| 96 || 6′     || ~1.83 m ||
|-
| 108 || 6′ 9″    || ~2.06 m ||
|-
| 128 || 8′      || ~2.44 m ||
|-
| 160 || 10′      || ~3.05 m  ||
|-
| 192 || 12′      || ~3.66 m  ||
|-
| 256 || 16′      || ~4.88 m  ||
|-
| 512 || 32′      || ~9.75 m  ||
|-
|colspan="4"|''<sup>'''†'''</sup> Too small to be used in-editor (Except with Microgrid in {{h++|4}})''
|}
{{clr}}
 
=== [[Skybox]] Scales ===
==== 1 Foot to 1 Hammer Unit (1⁄16 scale of Regular Map) ====
Usually used for Skybox Creation (excluding {{l4d|4}} & {{l4d2|4}}).
{| class="standard-table" style="text-align:left"
! Unit   !! Skybox Grid            || Imperial                        !! Metric                      !! Other/Notes
|-
| 16 Map-Grid Hammer Units || 1         || 1′                     || 30.48 cm         || Ratio of Regular Hammer Units to Skybox Hammer Units in a 1:16 Ratio
|-
| 100 yards   || 300             || 300 ft                 || ~91.4 m                      || Imperial Based
|-
| 100 meters   || ~328 1⁄12             || ~328 1⁄12 ft         || 100 m         || Metric Based
|-
| 1 kilometer    || ~3,283 4⁄12            || ~3,283 4⁄12 ft                  || 1 km                        || Metric Based
|-
| 1 mile   || 5,280                 || 5,280 ft             || ~1.6 km             || Imperial Based - 1,670 yd
|-
| 1 acre   || 43,560² (66 × 660)      || 43,560 ft² (66 ft × 660 ft)      || ~4,047 m² (~20 m × ~201 m) || Imperial Based - 1⁄640 mi², ~0.405 ha, 4840 yd²
|-
| 1 hectare   || ~107,639² (~328 × ~328) || ~107,639 ft² (~328 ft × ~328 ft) || 10,000 m² (100 m × 100 m)    || Metric Based - ~11,960 yd²
|}
 
==== 2 Feet to 1 Hammer Unit (1⁄32 scale of Regular Map) ====
Usually used for Skybox Creation, specifically for {{l4d|4}} & {{l4d2|4}} skyboxes that use a 1⁄32 scale instead of 1⁄16
{| class="standard-table" style="text-align:left"
! Unit   !! Skybox Grid            || Imperial                        !! Metric                      !! Other/Notes
|-
| 32 Map-Grid Hammer Units || 1         || 2′                     || 60.96 cm         || Ratio of Regular Hammer Units to Skybox Hammer Units in a 1:16 Ratio
|-
| 100 yards   || 150             || 300 ft                 || ~91.4 m                      || Imperial Based
|-
| 100 meters   || ~164                  || ~328 1⁄12 ft         || 100 m         || Metric Based
|-
| 1 kilometer    || ~1,640                || ~3,283 4⁄12 ft                  || 1 km                        || Metric Based
|-
| 1 mile   || 2,640                 || 5,280 ft             || ~1.6 km             || Imperial Based
|-
| 1 acre   || 10,890² (33 × 330)    || 43,560 ft² (66 ft × 660 ft)      || ~4,047 m² (~20 m × ~201 m) || Imperial Based - Done by halving the lengths, not area.
|-
| 1 hectare   || ~26,910² (~164 × ~164) || ~107,639 ft² (~328 ft × ~328 ft) || 10,000 m² (100 m × 100 m)    || Metric Based - Done by halving the lengths, not area.
|}
 
== See Also ==
* [[Dimensions]]
* [[Measurements]]
* [[Unit]]
* [[Player]]
 
[[Category:Glossary]]
[[Category:Hammer]]
[[Category:Level Design]]
[[Category:Skybox]]

Latest revision as of 15:44, 20 October 2025

Hammer Units are the Dimensions used by the Hammer Hammer Editor for Source Source Engine. Most games use different scales but the most common are 1:12 & 1:16 for Player Models & Geometry/Props respectively.

Scales

Map Scales

1 Foot to 12 Hammer Units

Usually for Human Characters and other miscellaneous models.

Grid Imperial Metric Notes
~0.3937 ~0.39″ 1 cm 1 Centimeter †
1 1″ 2.54 cm 1 Inch
2 2″ ~5 cm
4 4″ ~10.1 cm
8 8″ ~20 cm
12 1′ ~30.4 cm 1 Foot
16 1′ 4″ ~40.6 cm
24 2′ ~61 cm
28 2′ 4″ ~71 cm
32 2′ 8″ ~81 cm
36 3′ ~91 cm
~39.37008 ~3′ 3″ 1 m 1 Meter
45 3′ 9″ ~1.14 m
48 4′ ~1.21 m
62 5′ 2″ ~1.57 m
64 5′ 4″ ~1.63 m
72 6′ ~1.83 m
96 8′ ~2.44 m
108 9′ ~2.74 m
128 9′ 8″ ~3.25 m
160 13′ 4″ ~4.06 m
192 16′ ~4.88 m
256 21′ 4″ ~6.5 m
512 42′ 8″ ~13 m
† Too small to be used in-editor (Except with Microgrid in Hammer++ Hammer++)

1 Foot to 16 Hammer Units

Usually for Map Geometry & Props.

Grid Imperial Metric Notes
~0.5249 ~0.3937″ 1 cm 1 Centimeter †
1 0.75″ 1.905 cm
~1.3333 1″ 2.54 cm 1 Inch
2 1.5″ 3.81 cm
4 3″ 7.62 cm
8 6″ 15.24 cm
12 9″ 22.86 cm
16 1′ 30.48 cm 1 Foot
20 1′ 3″ 38.1 cm
24 1′ 6″ 45.72 cm
28 1′ 9″ 53.34 cm
32 2′ 60.96 cm
36 2′ 3″ 68.58 cm
40 2′ 6″ 76.2 cm
44 2′ 9″ 83.82 cm
45 2′ 9.75″ 85.725 cm
48 3′ 91.44 cm
~52.4934 ~39.37′ 1 m
56 3′ 6″ ~1.07 m
64 4′ ~1.22 m
72 4′ 6″ ~1.37 m
80 5′ ~1.52 m
96 6′ ~1.83 m
108 6′ 9″ ~2.06 m
128 8′ ~2.44 m
160 10′ ~3.05 m
192 12′ ~3.66 m
256 16′ ~4.88 m
512 32′ ~9.75 m
† Too small to be used in-editor (Except with Microgrid in Hammer++ Hammer++)

Skybox Scales

1 Foot to 1 Hammer Unit (1⁄16 scale of Regular Map)

Usually used for Skybox Creation (excluding Left 4 Dead Left 4 Dead & Left 4 Dead 2 Left 4 Dead 2).

Unit Skybox Grid Imperial Metric Other/Notes
16 Map-Grid Hammer Units 1 1′ 30.48 cm Ratio of Regular Hammer Units to Skybox Hammer Units in a 1:16 Ratio
100 yards 300 300 ft ~91.4 m Imperial Based
100 meters ~328 1⁄12 ~328 1⁄12 ft 100 m Metric Based
1 kilometer ~3,283 4⁄12 ~3,283 4⁄12 ft 1 km Metric Based
1 mile 5,280 5,280 ft ~1.6 km Imperial Based - 1,670 yd
1 acre 43,560² (66 × 660) 43,560 ft² (66 ft × 660 ft) ~4,047 m² (~20 m × ~201 m) Imperial Based - 1⁄640 mi², ~0.405 ha, 4840 yd²
1 hectare ~107,639² (~328 × ~328) ~107,639 ft² (~328 ft × ~328 ft) 10,000 m² (100 m × 100 m) Metric Based - ~11,960 yd²

2 Feet to 1 Hammer Unit (1⁄32 scale of Regular Map)

Usually used for Skybox Creation, specifically for Left 4 Dead Left 4 Dead & Left 4 Dead 2 Left 4 Dead 2 skyboxes that use a 1⁄32 scale instead of 1⁄16

Unit Skybox Grid Imperial Metric Other/Notes
32 Map-Grid Hammer Units 1 2′ 60.96 cm Ratio of Regular Hammer Units to Skybox Hammer Units in a 1:16 Ratio
100 yards 150 300 ft ~91.4 m Imperial Based
100 meters ~164 ~328 1⁄12 ft 100 m Metric Based
1 kilometer ~1,640 ~3,283 4⁄12 ft 1 km Metric Based
1 mile 2,640 5,280 ft ~1.6 km Imperial Based
1 acre 10,890² (33 × 330) 43,560 ft² (66 ft × 660 ft) ~4,047 m² (~20 m × ~201 m) Imperial Based - Done by halving the lengths, not area.
1 hectare ~26,910² (~164 × ~164) ~107,639 ft² (~328 ft × ~328 ft) 10,000 m² (100 m × 100 m) Metric Based - Done by halving the lengths, not area.

See Also

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