OneChat · WhatsApp Business API calculator
Estimate the cost of your WhatsApp Business messages
Estimate monthly spend by recipient market, message category and delivered-message volume. Compare Meta's official July and October 2026 rate cards.

Set up your estimate
Estimate Meta's variable charge for the selected period using official rates and progressive volume tiers.
CategoryMessages per monthList rateSubtotal
MarketingPromotions, offers and re-engagement.
List rate$0.0125USD
UtilityTransactional updates requested by the customer.Marginal tier applied: 1–100,000 · $0.0008 · list rate
List rate$0.0008USD
AuthenticationLogin codes and identity verification.Marginal tier applied: 1–120,000 · $0.0008 · list rate
List rate$0.0008USD
International authenticationAvailable in 9 eligible markets for the selected period. The estimate continues from authentication volume already accumulated that month, as Meta specifies.
List rate—Not available
ServiceNon-template replies the business sends inside an open customer-service window. No Meta charge in this period.
List rate$0.0000USD
Official volume tiers
The subtotal is calculated progressively: each block of messages keeps its tier's rate.
Potentially no-charge messages
Track them separately: they appear in the summary but do not increase the estimated cost.
Messages customers send to your WhatsApp number do not incur a Meta charge.
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