Salesforce API Limit Buffer Calculator
Check how much Salesforce API cushion you have before hitting daily governor limits. Enter the org's published cap, baseline usage, and a peak surge multiplier. Layer in new automation load or a target safety buffer to see headroom, peak utilization, and whether you need to stagger jobs or buy more capacity.
Planning tool only. Monitor Salesforce Setup > System Overview for live usage and confirm limit increases with your account team.
Examples
- 100,000-call limit, 62,000 average calls, 150% surge, 8,000 new automation calls, 85% safety buffer ⇒ Peak-day volume 105,000 calls • Headroom at peak: overage of 5,000 calls. • Baseline utilization: 70.00% • Peak utilization: 105.00% • Calls available before hitting the 85.00% safety buffer: 15,000. • Daily calls remaining before the hard cap: 30,000.
 - 250,000-call limit, 140,000 average calls, 135% surge, optional fields blank ⇒ Peak-day volume 189,000 calls • Headroom at peak: 61,000 calls remaining. • Baseline utilization: 56.00% • Peak utilization: 75.60% • Calls available before hitting the 85.00% safety buffer: 72,500. • Daily calls remaining before the hard cap: 110,000.
 
FAQ
Can I model hourly bursts?
Yes. Divide the peak-day volume by 24 or your scheduled batch window to ensure concurrency also respects hourly throttle limits.
How should I handle sandbox testing?
Use your production cap for planning, then apply sandbox multipliers from Salesforce docs if a lower ceiling applies in lower environments.
Does this include Async SOQL or Bulk API 2.0 batches?
Yes. Each batch counts as one call toward the daily governor limit, so include anticipated batch counts in the automation field.
What if I expect seasonal spikes?
Adjust the surge multiplier to match holiday or campaign peaks, then review headroom to decide if you need temporary add-on calls.
Additional Information
- Salesforce enforces API limits on a rolling 24-hour window, so large overnight batches still count toward the daily cap.
 - Bulk API, REST, SOAP, and Streaming API calls all deduct from the same limit unless you have purchased separate allowances.
 - Enterprise and Unlimited editions start at 100,000 calls per day plus 1,000 per user license—confirm your exact ceiling before running tight integrations.