Translation:According to my final calculations, it is right.
Why isn't 'just' accepted as a translation for 'juste'? Admittedly it isn't used often in English but it still works within the context of this sentence!
I provide the following dictionary definition as proof of its validity:
Just, adjective 1. guided by truth, reason, justice, and fairness: We hope to be just in our understanding of such difficult situations. 2. done or made according to principle; equitable; proper: a just reply. 3. based on right; rightful; lawful: a just claim. 4. in keeping with truth or fact; true; correct: a just analysis. 5. given or awarded rightly; deserved, as a sentence, punishment, or reward: a just penalty.
I disagree. Unless I misunderstand the French "les calculs", we're talking about a mathematical computation, in which case "just" cannot be used, but "correct" can. "Just" can substitute for "right", but its opposite isn't merely "incorrect". The only one of those definitions that almost applies is the fourth, but what it really means is "not influenced by personal bias(es)"; it does not mean "free from mathematical errors".
C'est juste, this sentence doesn't point to les calculs. if you want to, the sentence should be written as such(according to some grammar site, e.g. about.com) Mes calculs, ils sont juste. (My calculations are correct)
Here, c'est juste is something else:
According to my final calculations, it is just(the distribution, for example)
sorry I am busy at the moment, if you still not understand i'll reply later with more details.
I understand your point, and it's a good one, but it still doesn't work. It's never "just" according to someone's calculations; it would be "just" according to their assumptions (upon which the calculations are based). "According to" speaks to the correctness of the calculations. Fairness is simply not a property of calculations.
To answer to all, it is the difference between "juste" being used as an adjective or a predicative ("attribut du sujet" in French, for who is interested).
Depending how you use it, "juste" can have many meanings:
c'est un homme juste/il est juste = he is a fair man/he is fair
c'est juste = "it is correct" or "it is fair"
ce n'est pas juste = it is not fair (sometimes "it is not correct", but rarely used)
il y a juste 5 minutes = there has been only 5 minutes
ils sont juste arrives = they just arrived.
If "juste" is used as an adjective/predicative, it accords with the noun (des hommes justes, ces hommes sont justes). But careful in this case, the noun is "c' ", which is the contraction of "ce/ca" which is always neutral and singular.
And no accord if "juste" is used as an adverb.
selon mes calculs, c'est juste.
mes calculs sont justeS.
Juste mes calculs justes montrent que c'est juste de dire que ce sont des hommes justes (by themselves my accurate calculations show that it is correct to say that they are fair men).
Fairness is not a property of calculations, but as Wilvandal said, the sentence isn't referring to "les calculs" as "juste" (if it were, it would be "justes"). It's referring to something validated by the calculations, which could easily be just or unjust. Wilvandal's example is of a distribution is perfect. The given sentence could, for example, be a shortened version of:
D'après mes calculs finaux, chaque propriété a la même quantité de l'eau. Donc le répartition de la terre est juste.
In this case "juste" would mean fair or just.
It could also be the verdict of a trial.
D'après mes calculs finaux, il n'ai pas pu voyager de son travail à son maison en moins de trente minutes. Donc le jury ne commet pas d'erreur en acquittant l'accusée. Leur verdict est juste.
Theoriquement, le masculin pluriel de "final" etait "finals". Mais c'est une exception, qui se perd beaucoup dans la langue courante. Les 2 sont acceptes (dans les livres traditionnels par contre "finals" est beaucoup plus courant que "finaux").
In English now: In the old tongue, the male plural of "final" was "finals". But as it was an exception, it is getting lost and people favour "finaux", especially when talking. Both should be accepted nowadays, but "finals" would be seen more often than "finaux" in traditional books.