Roll 7 D90 dice

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7D90 Dice Roller

7D90 Dice Roller
Rolls 7 D90 dice
Lets you roll multiple dice like 2 D90s, or 3 D90s. Add, remove or set numbers of dice to roll
Combine with other types of dice (like D88 and D92) to throw and make a custom dice roll

Statistics of this Dice Roller

Roll7D90
Total Kinds of Dice1
Total Dice7
Minimum Sum7
Maximum Sum630
Lowest Dice Face1
Highest Dice Face90
Highest Dice Face of the Smallest Die90
7D90
Total Possible Combinations 11,919,192,480

Number of combinations are calculated using the formula [ (90+7-1) choose (7) ]

You can try generating all the combinations using the following combination generator
All possible combinations of 7D90
7D90
Total Possible Permutations 47,829,690,000,000

Number of permutations are calculated using the formula [ 90^7 ]

You can try generating all the permutations using the following permutations generator
All possible permutations of 7D90

Probabilities of this Dice Roller

7D90

Probability of getting a 1

In technical terms this is equivalent of getting atleast one 1. This is close to 0.075, about 7.52% percent.

This is calculated by multiplying all the probabilities of not getting a 1 for each dice and then subtracting the answer from 1.

1 - (89/90 x 89/90 x 89/90 x 89/90 x 89/90 x 89/90 x 89/90)

Probability of not getting a 1

Probability of not getting any 1 is close to 0.92, about 92.48% percent.

This is calculated by multiplying all the probabilities of not getting a 1 for each dice.

89/90 x 89/90 x 89/90 x 89/90 x 89/90 x 89/90 x 89/90

Probability of getting all 1's

Probability of getting all 1's is close to 0.000000000000021, about 0.0000000000021% percent.

This is calculated by multiplying together all the probabilities of getting a 1 for each dice.

1/90 x 1/90 x 1/90 x 1/90 x 1/90 x 1/90 x 1/90

Probability of getting 7 1s

Probability of getting 7 1's is close to 0.000000000000021, about 0.0000000000021% percent.

This is calculated by multiplying together all the probabilities of getting a 1 for each dice that has a 1.

1/90 x 1/90 x 1/90 x 1/90 x 1/90 x 1/90 x 1/90

Probability of getting a 90

In technical terms this is equivalent of getting atleast one 90. This is close to 0.075, about 7.52% percent.

This is calculated by multiplying all the probabilities of not getting a 90 for each dice and then subtracting the answer from 1.

1 - (89/90 x 89/90 x 89/90 x 89/90 x 89/90 x 89/90 x 89/90)

Probability of not getting a 90

Probability of not getting any 90 is close to 0.92, about 92.48% percent.

This is calculated by multiplying all the probabilities of not getting a 90 for each dice.

89/90 x 89/90 x 89/90 x 89/90 x 89/90 x 89/90 x 89/90

Probability of getting all 90's

Probability of getting all 90's is close to 0.000000000000021, about 0.0000000000021% percent.

This is calculated by multiplying together all the probabilities of getting a 90 for each dice.

1/90 x 1/90 x 1/90 x 1/90 x 1/90 x 1/90 x 1/90

Probability of getting 7 90s

Probability of getting 7 90's is close to 0.000000000000021, about 0.0000000000021% percent.

This is calculated by multiplying together all the probabilities of getting a 90 for each dice that has a 90.

1/90 x 1/90 x 1/90 x 1/90 x 1/90 x 1/90 x 1/90

Probability of getting all highest faces

Probability of getting all the maximum faces (7 90's) is close to 0.000000000000021, about 0.0000000000021% percent.

This is calculated by multiplying together all the probabilities of getting the maximum face for each dice.

1/90 x 1/90 x 1/90 x 1/90 x 1/90 x 1/90 x 1/90

Probability of getting one of a kind

Probability of getting one of a kind is close to 0.0000000000019, about 0.00000000019% percent.

There are 90 ways to get one of a kind (all 1's, all 2's, all 3's, all 4's, all 5's, all 6's, all 7's, all 8's, all 9's, all 10's, all 11's, all 12's, all 13's, all 14's, all 15's, all 16's, all 17's, all 18's, all 19's or all 20's and so on). The probability of getting all of any kind is then caclulated by adding the probability of getting all 1's, all 2's, all 3's, all 4's, all 5's, all 6's, all 7's, all 8's, all 9's, all 10's, all 11's, all 12's, all 13's, all 14's, all 15's, all 16's, all 17's, all 18's, all 19's or all 20's and so on. Since, probabilities of getting all 1's through all 90's are the same, we can multiply them all together. So, multiplying the probability of getting all 1's by 90 will give us the probability of getting all of any kind.

    
    90 x (1/90 x 1/90 x 1/90 x 1/90 x 1/90 x 1/90 x 1/90)

Javascript code to create this dice roller


    // code to create a 7D90 dice roller

    
                   
        // define the range of numbers to pick from
        var lowest = 1;             // lowest possible side of the dice
        var highest = 90;           // highest possible side of the dice
        var numbers_of_dice = 7;    // how many dice to roll     
        
        var this_roll = []; // array to store the results of this roll

        for (var j = 1; j <= numbers_of_dice; j++) {

            // loop for the number of dice

            // for each dice, generate a number between lowest and highest
            var dice_face = Math.floor(Math.random() * (highest-lowest+1) + lowest);
            this_roll.push(dice_face); //store this in the array
        }
            
        
        // print all the generated rolls
            
        for (j = 0; j < this_roll.length; j++) {

            // loop through the dice array 

            //print each dice roll value followed by a space
            document.write(this_roll[j]);
            document.write(" ");

        }
            
        
    

    /* 

    Sample output 

    

    */