Educational calculators on MyCryptoCal use indicative mids: snapshots suitable for learning and scenario analysis, not guaranteed executable prices. Many tools use Binance USDT as a USD proxy—your USD stablecoin leg and venue index can differ slightly.
Where differences come from
- Fee tier and maker/taker mode
- Oracle vs last trade on derivatives
- Sub-accounts, portfolio margin, and promos
- Tick size and rounding
Best practice
Use third-party tools for relative relationships (“double size doubles notional”) and your exchange for absolute tickets.
Read more in the FAQ and explore tools on MyCryptoCal home.
What “indicative” should mean in your workflow
Use indicative mids to learn relationships—how margin scales with leverage, how doubling coins doubles tick sensitivity in many models—then confirm absolute numbers on the live ticket before committing size.
When feeds disagree politely
Two reputable feeds can differ at rest and far more during spikes. Arguing over who is “right” matters less than knowing which feed your venue executes against.
- Screenshot venue mid vs calculator mid occasionally.
- Expect divergence around funding prints and listings.
- Prefer relative comparisons when teaching others.
Healthy skepticism is a feature
Calculators that never disagree with your venue would be suspicious. Small differences are normal; huge persistent gaps deserve support tickets with examples.