Quick Formulas

  1. If Lumber is full sawn, or footage is computed on actual sizes, multiply the board footage expressed in thousands of board feet (MBF) by 2.358 to find cubic meters:
    MBF x 2.358 = m3
  2. If lumber footage is based on nominal sizes, divide the actual cross section (thickness x width) by the nominal cross section (thickness x width), then multiply by 2.358. Multiply the total board footage (MBF) by this figure to find the total cubic meters:

    Actual Cross Section / Nominal Cross Section x 2.358 x MBF = m3

  3. If the lumber is trimmed to a specific length, but billed on an even foot basis, as in precision end-trimmed studs, then account for this difference by multiplying the total cubic meters (found by either of the above formulas or the chart) by an additional factor. To find this factor, divide the actual trim length by the nominal length, then multiply the total cubic meters by this number:

    Actual Trim / Nominal Length x m3 = total m3

Dry S4S
Nominal Size
1×2
1×3
1×4
1×6
1×8
1×10
1×12

2×3
2×4
2×6
2×8
2×10
2×12

 Actual Size
3/4 x 1 1/2
3/4 x 2 1/2
3/4 x 3 1/2
3/4 x 5 1/2
3/4 x 7 1/4
3/4 x 9 1/4
3/4 x 11 1/4

1 1/2 x 2 1/2
1 1/2 x 3 1/2
1 1/2 x 5 1/2
1 1/2 x 7 1/4
1 1/2 x 9 1/4
1 1/2 x 11 1/4

 m3/MBF
1.326
1.474
1.547
1.621
1.603
1.636
1.658

1.474
1.547
1.621
1.603
1.636
1.658

Metric Conversion Chart

The Key figure in Bold in the centre column can be read as either the metric or the British measure, thus 1 metre = 1.094 yards or 1 yard = 0.914 metres.

Inches
0.039
0.079
0.118
0.157
0.197
0.236
0.276
0.315
0.354
1
2
3
4
5
6
7
8
9		 Milli-
metres
25.400
50.800
76.200
101.600
127.000
152.400
177.800
203.200
228.600
Miles
0.621
1.243
1.864
2.485
3.107
3.728
4.350
4.971
5.592

1
2
3
4
5
6
7
8
9

 Kilo-
metres
1.609
3.219
4.828
6.437
8.047
9.656
11.265
12.875
14.484
Feet
3.281
6.562
9.843
13.123
16.404
19.685
22.966
26.247
29.528

1
2
3
4
5
6
7
8
9

 Metres
0.305
0.610
0.914
1.219
1.524
1.829
2.134
2.438
2.743

Cubic
Feet
35.315
70.629
105.943
141.258
176.572
211.887
247.201
282.516
317.830
1
2
3
4
5
6
7
8
9		 Cubic
Metres
0.028
0.057
0.085
0.113
0.142
0.170
0.198
0.227
0.255
Cubic
Yards
1.308
2.616
3.924
5.232
6.540
7.848
9.156
10.464
11.772
1
2
3
4
5
6
7
8
9		 Cubic
Metres
0.765
1.529
2.294
3.058
3.823
4.587
5.352
6.117
6.881
Pints
1.761
3.521
5.282
7.043
8.804
10.564
12.325
14.086
15.847

1
2
3
4
5
6
7
8
9
Litres
0.568
1.136
1.704
2.272
2.840
3.408
3.976
4.544
5.112

Sq.
Feet
10.764
21.528
32.292
43.056
53.819
64.583
75.347
86.111
96.875
1
2
3
4
5
6
7
8
9		 Sq.
Metres
0.093
0.186
0.279
0.372
0.465
0.557
0.650
0.743
0.836
Yards
1.094
2.187
3.281
4.374
5.468
6.562
7.655
8.749
9.843
1
2
3
4
5
6
7
8
9		 Metres
0.914
1.829
2.743
3.658
4.572
5.486
6.401
7.315
8.230
Sq.
Yards
1.196
2.392
3.588
4.785
5.980
7.176
8.372
9.568
10.764

1
2
3
4
5
6
7
8
9

 Sq.
Metres
0.836
1.672
2.508
3.345
4.181
5.017
5.853
6.689
7.525


Gallons
0.220
0.440
0.660
0.880
1.101
1.321
1.541
1.761
1.981
1
2
3
4
5
6
7
8
9
Litres
4.546
9.092
13.638
18.184
22.730
27.276
31.822
36.368
40.914
Ounces
0.035
0.071
0.106
0.141
0.176
0.212
0.247
0.282
0.317
1
2
3
4
5
6
7
8
9		 Grams
28.350
56.699
85.049
113.398
141.748
170.097
198.447
226.796
255.146

Pounds
2.205
4.409
6.614
8.819
11.023
13.226
15.432
17.637
19.842

1
2
3
4
5
6
7
8
9

 Kilo-
Grams
0.454
0.907
1.361
1.814
2.268
2.722
3.175
3.629
4.082
Conversion Formulae
To Convert: Multiply By:
Inches to Centimetres 2.540
Centimetres to Inches 0.393701
Feet to Metres 0.3048
Metres to Feet 3.280840
Yards to Metres 0.9144
Metres to Yards 1.093613
Sq.Inches to Sq.Centimetres 6.4516
Sq.Centimetres to Sq.Inches 0.1550
Sq.Metres to Sq.Feet 10.763910
Sq.Feet to Sq.Metres 0.092903
Sq.Yards to Sq.Metres 0.836127
Sq.Metres to Sq.Yards 1.19599
Sq.Miles to Sq.Kilometres 2.589988
Sq.Kilometres to Sq.Miles 0.386102
Acres to Hectares 0.404686
Hectares to Acres 2.481054
Cubic Inches to Cubic Centimetres 16.387064
Cubic Centimetres to Cubic Inches 0.061024
Cubic Feet to Cubic Metres 0.028317
Cubic Metres to Cubic Feet 35.314667
Cubic Yards to Cubic Metres 0.764555
Cubic Metres to Cubic Yards 1.307951
Cubic Inches to Litres 0.016387064
Litres to Cubic Inches 61.024
Gallons to Litres 4.5460921
Litres to Gallons 0.219969
Grains to Grams 0.064799
Grams to Grains 15.432358
Ounces to Grams 28.349523
Grams to Ounces 0.035274
Pounds to Grams 453.592
Grams to Pounds 0.002204623
Pounds to Kilograms 0.453592
Kilograms to Pounds 2.204623
Tons to Kilograms 1016.00
Kilograms to Tons 0.0009842