Pattern 1 Properties
Staggered Pattern
Square/Rectangular Pattern

Burden (m)
Spacing (m)
Bench Height (m)
Number of Holes (integer)

Hole Properties
Stemming (m)
Stem Density (kg/L)
Angle (°) [vertical = 0°]
Sub Drill (m)
Diameter (m)
Sum All Inert Deck Lengths (m)

Explosive Properties
Product Density (kg/L)
Product Name
ANFO %
Fuel Oil% of ANFO
Emulsion/Matrix %

Rock Properties
Rock Density (kg/L)
Rock Name

Timing Properties
Shock Tube (Nonel) Electronic (programmable) Electric Det. Cord & Downhole Unknown Initiation Type
Spacing Time (ms)
Burden Time (ms)

Additional Comments ...


Cost Properties
Downhole Primers per Hole
Booster Unit ($)
Downhole Detonator Unit ($)
Bulk Explosive Tonne ($)
Surface Detonator Unit ($)
Wire/Cord per Meter ($)
Drill Meter Cost ($)



Pattern 1 Results
If more than one pattern, Totals and averages are on the "Total Results".

01) Pattern Area = 24.75 m^2
02) Stemmed Zone Volume = 297 m^3
03) Stemmed Zone Tonnes = 849.42 Tonnes

04) Hole Influence Area = 24.75 m^2
05) Hole Influence Volume = 297 m^3
06) Hole Influence Tonnes = 849.42 Tonnes

07) Hole Length = 13.2 m
08) Hole Volume Per Meter = 849.42 L
09) Hole Volume Per Length = 849.42 L

10) Hole Stemming Length Volume = 849.42 L
11) Hole Stemming Length Mass = 849.42 kg
12) Hole Inert Length Volume = 849.42 L

13) Hole Charge Length Volume = 849.42 L
14) Hole Charge Length Mass = 849.42 kg
15) Charge per meter mass = 000.00 kg

16) Total Drill Meters = 849.42 m
17) Total Charge Meters = 000.00 m
18) Total Explosives = 000.00 kg
19) Total Blast Rock Volume = 000.00 m^3
20) Total Blast Rock Tonnes = 000.00 T
21) Powder Factor Volume = 000.00 kg/m^3
22) Powder Factor Tonnes = 000.00 kg/T

23) Vertical Energy = 000.00 %
24) Burden Stiffness = 000.00 ratio
25) Scaled Depth Burial Ratio = 000.00 m/kg^0.33

26) Spacing Speed = 000.00 ms/m
27) Burden Speed = 000.00 ms/m
28) Timing Relief = 000.00 ms/m

29) Diameters per Stem Length = 000.00 ratio
30) Diameters per Sub Drill Length = 000.00 ratio
31) Burdens per Spacing = 000.00 ratio
32) Diameters per Burden Amount = 000.00 ratio
33) Diameters per Bench Height = 000.00 ratio

34) Fuel Oil Amount = 000.00 kg
35) Ammonium Nitrate Amount = 000.00 kg
36) Emulsion/Matrix Amount = 000.00 kg

37) Down Hole Primers = 000.00 units
38) Total Booster Cost = $ 000.00
39) Total Downhole Cost = $ 000.00
40) Total Bulk Explosive Cost = $ 000.00
41) Surface Detonator Cost = $ 000.00
42) Wire or Cord Amount = 000.00 m
43) Wire or Cord Cost = $ 000.00
44) Drilling Cost = $ 000.00
45) Total Blast Cost = $ 000.00
45) Cost Per BCM = $ 000.00
47) Cost Per Tonne = $ 000.00




This calculator was first published as "BlastCalc" on the Apple iOS App Store as a native iPhone and iPad app in 2010. The publisher was Chin-Apse Pty. Ltd. This is app was something of great use to many people. It is a simple calculator of common blasting ratios and statistics. modern browsers support HTML and CSS better now, as such the app that died on the Apple Store can now live again. Created code is in HTML/JS/CSS.
Thank you.

Brent Buffham © 2021.

Pattern 2 Properties
Staggered Pattern
Square/Rectangular Pattern

Burden (m)
Spacing (m)
Bench Height (m)
Number of Holes (integer)

Hole Properties
Stemming (m)
Stem Density (kg/L)
Angle (°) [vertical = 0°]
Sub Drill (m)
Diameter (m)
Sum All Inert Deck Lengths (m)

Explosive Properties
Product Density (kg/L)
Product Name
ANFO %
Fuel Oil% of ANFO
Emulsion/Matrix %

Rock Properties
Rock Density (kg/L)
Rock Name

Timing Properties
Shock Tube (Nonel) Electronic (programmable) Electric Det. Cord & Downhole Unknown Initiation Type
Spacing Time (ms)
Burden Time (ms)

Additional Comments ...


Cost Properties
Downhole Primers per Hole
Booster Unit ($)
Downhole Detonator Unit ($)
Bulk Explosive Tonne ($)
Surface Detonator Unit ($)
Wire/Cord per Meter ($)
Drill Meter Cost ($)



Pattern 2 Results
If more than one pattern, Totals and averages are on the "Total Results".

01) Pattern Area = 24.75 m^2
02) Stemmed Zone Volume = 297 m^3
03) Stemmed Zone Tonnes = 849.42 Tonnes

04) Hole Influence Area = 24.75 m^2
05) Hole Influence Volume = 297 m^3
06) Hole Influence Tonnes = 849.42 Tonnes

07) Hole Length = 13.2 m
08) Hole Volume Per Meter = 849.42 L
09) Hole Volume Per Length = 849.42 L

10) Hole Stemming Length Volume = 849.42 L
11) Hole Stemming Length Mass = 849.42 kg
12) Hole Inert Length Volume = 849.42 L

13) Hole Charge Length Volume = 849.42 L
14) Hole Charge Length Mass = 849.42 kg
15) Charge per meter mass = 000.00 kg

16) Total Drill Meters = 849.42 m
17) Total Charge Meters = 000.00 m
18) Total Explosives = 000.00 kg
19) Total Blast Rock Volume = 000.00 m^3
20) Total Blast Rock Tonnes = 000.00 T
21) Powder Factor Volume = 000.00 kg/m^3
22) Powder Factor Tonnes = 000.00 kg/T

23) Vertical Energy = 000.00 %
24) Burden Stiffness = 000.00 ratio
25) Scaled Depth Burial Ratio = 000.00 m/kg^0.33

26) Spacing Speed = 000.00 ms/m
27) Burden Speed = 000.00 ms/m
28) Timing Relief = 000.00 ms/m

29) Diameters per Stem Length = 000.00 ratio
30) Diameters per Sub Drill Length = 000.00 ratio
31) Burdens per Spacing = 000.00 ratio
32) Diameters per Burden Amount = 000.00 ratio
33) Diameters per Bench Height = 000.00 ratio

34) Fuel Oil Amount = 000.00 kg
35) Ammonium Nitrate Amount = 000.00 kg
36) Emulsion/Matrix Amount = 000.00 kg

37) Down Hole Primers = 000.00 units
38) Total Booster Cost = $ 000.00
39) Total Downhole Cost = $ 000.00
40) Total Bulk Explosive Cost = $ 000.00
41) Surface Detonator Cost = $ 000.00
42) Wire or Cord Amount = 000.00 m
43) Wire or Cord Cost = $ 000.00
44) Drilling Cost = $ 000.00
45) Total Blast Cost = $ 000.00
45) Cost Per BCM = $ 000.00
47) Cost Per Tonne = $ 000.00




This calculator was first published as "BlastCalc" on the Apple iOS App Store as a native iPhone and iPad app in 2010. The publisher was Chin-Apse Pty. Ltd. This is app was something of great use to many people. It is a simple calculator of common blasting ratios and statistics. modern browsers support HTML and CSS better now, as such the app that died on the Apple Store can now live again. Created code is in HTML/JS/CSS.
Thank you.

Brent Buffham © 2021.

Pattern 3 Properties
Staggered Pattern
Square/Rectangular Pattern

Burden (m)
Spacing (m)
Bench Height (m)
Number of Holes (integer)

Hole Properties
Stemming (m)
Stem Density (kg/L)
Angle (°) [vertical = 0°]
Sub Drill (m)
Diameter (m)
Sum All Inert Deck Lengths (m)

Explosive Properties
Product Density (kg/L)
Product Name
ANFO %
Fuel Oil% of ANFO
Emulsion/Matrix %

Rock Properties
Rock Density (kg/L)
Rock Name

Timing Properties
Shock Tube (Nonel) Electronic (programmable) Electric Det. Cord & Downhole Unknown Initiation Type
Spacing Time (ms)
Burden Time (ms)

Additional Comments ...


Cost Properties
Downhole Primers per Hole
Booster Unit ($)
Downhole Detonator Unit ($)
Bulk Explosive Tonne ($)
Surface Detonator Unit ($)
Wire/Cord per Meter ($)
Drill Meter Cost ($)



Pattern 2 Results
If more than one pattern, Totals and averages are on the "Total Results".

01) Pattern Area = 24.75 m^2
02) Stemmed Zone Volume = 297 m^3
03) Stemmed Zone Tonnes = 849.42 Tonnes

04) Hole Influence Area = 24.75 m^2
05) Hole Influence Volume = 297 m^3
06) Hole Influence Tonnes = 849.42 Tonnes

07) Hole Length = 13.2 m
08) Hole Volume Per Meter = 849.42 L
09) Hole Volume Per Length = 849.42 L

10) Hole Stemming Length Volume = 849.42 L
11) Hole Stemming Length Mass = 849.42 kg
12) Hole Inert Length Volume = 849.42 L

13) Hole Charge Length Volume = 849.42 L
14) Hole Charge Length Mass = 849.42 kg
15) Charge per meter mass = 000.00 kg

16) Total Drill Meters = 849.42 m
17) Total Charge Meters = 000.00 m
18) Total Explosives = 000.00 kg
19) Total Blast Rock Volume = 000.00 m^3
20) Total Blast Rock Tonnes = 000.00 T
21) Powder Factor Volume = 000.00 kg/m^3
22) Powder Factor Tonnes = 000.00 kg/T

23) Vertical Energy = 000.00 %
24) Burden Stiffness = 000.00 ratio
25) Scaled Depth Burial Ratio = 000.00 m/kg^0.33

26) Spacing Speed = 000.00 ms/m
27) Burden Speed = 000.00 ms/m
28) Timing Relief = 000.00 ms/m

29) Diameters per Stem Length = 000.00 ratio
30) Diameters per Sub Drill Length = 000.00 ratio
31) Burdens per Spacing = 000.00 ratio
32) Diameters per Burden Amount = 000.00 ratio
33) Diameters per Bench Height = 000.00 ratio

34) Fuel Oil Amount = 000.00 kg
35) Ammonium Nitrate Amount = 000.00 kg
36) Emulsion/Matrix Amount = 000.00 kg

37) Down Hole Primers = 000.00 units
38) Total Booster Cost = $ 000.00
39) Total Downhole Cost = $ 000.00
40) Total Bulk Explosive Cost = $ 000.00
41) Surface Detonator Cost = $ 000.00
42) Wire or Cord Amount = 000.00 m
43) Wire or Cord Cost = $ 000.00
44) Drilling Cost = $ 000.00
45) Total Blast Cost = $ 000.00
45) Cost Per BCM = $ 000.00
47) Cost Per Tonne = $ 000.00




This calculator was first published as "BlastCalc" on the Apple iOS App Store as a native iPhone and iPad app in 2010. The publisher was Chin-Apse Pty. Ltd. This is app was something of great use to many people. It is a simple calculator of common blasting ratios and statistics. modern browsers support HTML and CSS better now, as such the app that died on the Apple Store can now live again. Created code is in HTML/JS/CSS.
Thank you.

Brent Buffham © 2021.

Pattern 4 Properties
Staggered Pattern
Square/Rectangular Pattern

Burden (m)
Spacing (m)
Bench Height (m)
Number of Holes (integer)

Hole Properties
Stemming (m)
Stem Density (kg/L)
Angle (°) [vertical = 0°]
Sub Drill (m)
Diameter (m)
Sum All Inert Deck Lengths (m)

Explosive Properties
Product Density (kg/L)
Product Name
ANFO %
Fuel Oil% of ANFO
Emulsion/Matrix %

Rock Properties
Rock Density (kg/L)
Rock Name

Timing Properties
Shock Tube (Nonel) Electronic (programmable) Electric Det. Cord & Downhole Unknown Initiation Type
Spacing Time (ms)
Burden Time (ms)

Additional Comments ...


Cost Properties
Downhole Primers per Hole
Booster Unit ($)
Downhole Detonator Unit ($)
Bulk Explosive Tonne ($)
Surface Detonator Unit ($)
Wire/Cord per Meter ($)
Drill Meter Cost ($)



Pattern 2 Results
If more than one pattern, Totals and averages are on the "Total Results".

01) Pattern Area = 24.75 m^2
02) Stemmed Zone Volume = 297 m^3
03) Stemmed Zone Tonnes = 849.42 Tonnes

04) Hole Influence Area = 24.75 m^2
05) Hole Influence Volume = 297 m^3
06) Hole Influence Tonnes = 849.42 Tonnes

07) Hole Length = 13.2 m
08) Hole Volume Per Meter = 849.42 L
09) Hole Volume Per Length = 849.42 L

10) Hole Stemming Length Volume = 849.42 L
11) Hole Stemming Length Mass = 849.42 kg
12) Hole Inert Length Volume = 849.42 L

13) Hole Charge Length Volume = 849.42 L
14) Hole Charge Length Mass = 849.42 kg
15) Charge per meter mass = 000.00 kg

16) Total Drill Meters = 849.42 m
17) Total Charge Meters = 000.00 m
18) Total Explosives = 000.00 kg
19) Total Blast Rock Volume = 000.00 m^3
20) Total Blast Rock Tonnes = 000.00 T
21) Powder Factor Volume = 000.00 kg/m^3
22) Powder Factor Tonnes = 000.00 kg/T

23) Vertical Energy = 000.00 %
24) Burden Stiffness = 000.00 ratio
25) Scaled Depth Burial Ratio = 000.00 m/kg^0.33

26) Spacing Speed = 000.00 ms/m
27) Burden Speed = 000.00 ms/m
28) Timing Relief = 000.00 ms/m

29) Diameters per Stem Length = 000.00 ratio
30) Diameters per Sub Drill Length = 000.00 ratio
31) Burdens per Spacing = 000.00 ratio
32) Diameters per Burden Amount = 000.00 ratio
33) Diameters per Bench Height = 000.00 ratio

34) Fuel Oil Amount = 000.00 kg
35) Ammonium Nitrate Amount = 000.00 kg
36) Emulsion/Matrix Amount = 000.00 kg

37) Down Hole Primers = 000.00 units
38) Total Booster Cost = $ 000.00
39) Total Downhole Cost = $ 000.00
40) Total Bulk Explosive Cost = $ 000.00
41) Surface Detonator Cost = $ 000.00
42) Wire or Cord Amount = 000.00 m
43) Wire or Cord Cost = $ 000.00
44) Drilling Cost = $ 000.00
45) Total Blast Cost = $ 000.00
45) Cost Per BCM = $ 000.00
47) Cost Per Tonne = $ 000.00




This calculator was first published as "BlastCalc" on the Apple iOS App Store as a native iPhone and iPad app in 2010. The publisher was Chin-Apse Pty. Ltd. This is app was something of great use to many people. It is a simple calculator of common blasting ratios and statistics. modern browsers support HTML and CSS better now, as such the app that died on the Apple Store can now live again. Created code is in HTML/JS/CSS.
Thank you.

Brent Buffham © 2021.

Total Results

Inputs Collated...

Pattern Types (type) = {1,2,3,4}
Burden Amounts (m) = {1,2,3,4}
Spacing Amounts (m) = {1,2,3,4}
Bench Heights (m) = {1,2,3,4}
Hole Amounts (#) = {1,2,3,4}

Stemming Amounts (m) = {1,2,3,4}
Stemming Densities (kg/L) = {1,2,3,4}
Hole Angles (#deg;) = {1,2,3,4}
Sub Drill Amounts (m) = {1,2,3,4}
Diameters (m) = {1,2,3,4}
Inert Amounts (m) = {1,2,3,4}

Product Densities (kg/L) = {1,2,3,4}
Product Names = {1,2,3,4}
ANFO % Amount (%) = {1,2,3,4}
Fuel Oil % Amount (%) = {1,2,3,4}
Emulsion/Matrix % Amount (%) = {1,2,3,4}

Rock Densities (kg/L) = {1,2,3,4}
Rock Names = {1,2,3,4}

Initiation Types = {1,2,3,4}
Spacing Times (ms) = {1,2,3,4}
Burden Times (ms) = {1,2,3,4}

Downhole Primers (#) = {1,2,3,4}
Booster Prices ($) = {1,2,3,4}
Downhole Detonator Prices ($) = {1,2,3,4}
Bulk Per tonnes Prices ($) = {1,2,3,4}
Surface Detonator Unit Prices ($) = {1,2,3,4}
Wire/Cord per meter Prices ($) = {1,2,3,4}
Drill Meter Prices ($) = {1,2,3,4}


Combined Results

01) Total Pattern Area = 24.75 m^2
02) Total Stemmed Zone Volume = 297 m^3
03) Total Stemmed Zone Tonnes = 849.42 Tonnes

04) Average Hole Influence Area = 24.75 m^2
05) Average Hole Influence Volume = 297 m^3
06) Average Hole Influence Tonnes = 849.42 Tonnes

07) Average Hole Length = 13.2 m
08) Average Hole Volume Per Meter = 849.42 L
09) Average Hole Volume Per Length = 849.42 L

10) Average Hole Stemming Length Volume = 849.42 L
11) Average Hole Stemming Length Mass = 849.42 kg
12) Average Hole Inert Length Volume = 849.42 L

13) Average Hole Charge Length Volume = 849.42 L
14) Average Hole Charge Length Mass = 849.42 kg
15) Average Charge per meter mass = 000.00 kg

16) Total Drill Meters = 849.42 m
17) Total Charge Meters = 000.00 m
18) Total Explosives = 000.00 kg
19) Total Blast Rock Volume = 000.00 m^3
20) Total Blast Rock Tonnes = 000.00 T
21) Average Powder Factor Volume = 000.00 kg/m^3
22) Average Powder Factor Tonnes = 000.00 kg/T

23) Average Vertical Energy = 000.00 %
24) Average Burden Stiffness = 000.00 ratio
25) Average Scaled Depth Burial Ratio = 000.00 m/kg^0.33

26) Average Spacing Speed = 000.00 ms/m
27) Average Burden Speed = 000.00 ms/m
28) Average Timing Relief = 000.00 ms/m

29) Average Diameters per Stem Length = 000.00 ratio
30) Average Diameters per Sub Drill Length = 000.00 ratio
31) Average Burdens per Spacing = 000.00 ratio
32) Average Diameters per Burden Amount = 000.00 ratio
33) Average Diameters per Bench Height = 000.00 ratio

34) Total Fuel Oil Amount = 000.00 kg
35) Total Ammonium Nitrate Amount = 000.00 kg
36) Total Emulsion/Matrix Amount = 000.00 kg

37) Total Down Hole Primers = 000.00 units
38) Total Booster Cost = $ 000.00
39) Total Downhole Cost = $ 000.00
40) Total Bulk Explosive Cost = $ 000.00
41) Total Surface Detonator Cost = $ 000.00
42) Total Wire or Cord Amount = 000.00 m
43) Total Wire or Cord Cost = $ 000.00
44) Total Drilling Cost = $ 000.00
45) Total Blast Cost = $ 000.00
45) Average Cost Per BCM = $ 000.00
47) Average Cost Per Tonne = $ 000.00




This calculator was first published as "BlastCalc" on the Apple iOS App Store as a native iPhone and iPad app in 2010. The publisher was Chin-Apse Pty. Ltd. This is app was something of great use to many people. It is a simple calculator of common blasting ratios and statistics. modern browsers support HTML and CSS better now, as such the app that died on the Apple Store can now live again. Created code is in HTML/JS/CSS.
Thank you.

Brent Buffham © 2021.