Work out free tier usage limit instantly with clear inputs, formula shown and shareable results.
Free tier allowances reset monthly, so what matters is whether the current daily rate will exhaust the allowance before the month ends. Projecting from usage to date gives the answer and, more usefully, the number of days remaining — which is the figure to alert on rather than a percentage of allowance consumed.
Free tier projection
daily rate = usage / day of month; projected = daily rate x 30.44; days until exhausted = (allowance - usage) / daily rate
Most always-free allowances do, but twelve-month introductory tiers expire permanently. Mixing the two up produces an unpleasant surprise in month thirteen.
No. Exceeding it silently starts charging, and any change in the provider's terms becomes a cost event. Treat free tiers as a development convenience.