All tools run in your browser—no data leaves this page.
Scaling on TikTok Shop is exhilarating—until operations bog down your day. These three calculators help you make faster decisions about fulfillment, live‑sale staffing, and inventory sync. Edit any number to match your workflow and get instant answers.
On this page
FBT vs. Seller Shipping — Total Cost
What it does: Compares per‑order and monthly costs for TikTok’s Fulfilled‑by‑TikTok (FBT) vs. self‑fulfillment (Seller Shipping).
Use it to: Decide when to remain self‑fulfilled, when to move SKUs to FBT, or when to run a hybrid mix.
Estimate per‑order and monthly costs for TikTok’s Fulfilled‑by‑TikTok (FBT) vs. self‑fulfillment (Seller Shipping). All numbers are editable.
Seller cost / order
—
FBT cost / order
—
Recommendation
—
Seller monthly total
—
FBT monthly total
—
Monthly savings
—
How to read it
- Seller cost / order vs FBT cost / order
- Monthly totals and Monthly savings
- A Recommendation with the per‑order cost delta
TikTok Shop fulfillment calculator
As an affiliate, we earn on qualifying purchases.
As an affiliate, we earn on qualifying purchases.
Live‑Sale Surge Capacity Planner
What it does: Estimates staffing and time‑to‑ship for your next live event.
Use it to: Check whether you’ll hit your ship‑by SLA and see staff needed with and without automation.
Live‑Sale Surge Capacity PlannerEstimate staffing and time‑to‑ship for your next live event. Compare manual vs. automated workflows.
Orders/hour (inflow)
—
Even spread across the live windowManual capacity/hour
—
= staff × manual pphAutomated capacity/hour
—
= manual capacity × automation multiplierTime to ship all (manual)
—
—Time to ship all (automated)
—
—Required staff to meet SLA
— (manual) • — (automated)
Assumes your pph and automation multiplier above
How to read it
- Orders/hour (inflow) during the live
- Capacity/hour (manual and automated)
- Time to ship all and whether you’ll meet SLA
- Required staff to meet SLA (manual vs. automated)
Warehouse Management and Inventory Control System
As an affiliate, we earn on qualifying purchases.
As an affiliate, we earn on qualifying purchases.
Inventory Sync Risk (Oversell) Estimator
What it does: Estimates oversell risk caused by inventory drift between syncs.
Use it to: Choose between faster syncs or raising safety stock per SKU.
Inventory Sync Risk (Oversell) EstimatorEstimate oversell risk from inventory drift between syncs, plus concrete fixes (faster syncs or more safety stock).
Expected drift per sync (per SKU)
—
= (TikTok + other) × (sync hours / 24)Potential oversells / month (all SKUs)
—
Assumes one unit/orderMonthly risk (estimated)
—
Risk score
—
—Recommended sync cadence
—
To keep drift ≤ safety stockOr raise safety stock to
—
If cadence can’t change
How to read it
- Expected drift per sync (per SKU)
- Potential oversells / month and Monthly risk ($)
- A Risk score and recommended sync cadence (or safety stock)
POS Software – All in One Retail Point of Sale Software – Credit Card Processing – Store Management Features, 90 Days Money Back, Free Updates/e-mail Support/video Tutorials
Affordable POS Software
As an affiliate, we earn on qualifying purchases.
As an affiliate, we earn on qualifying purchases.
Notes & assumptions
- These are directional planning tools—adjust defaults to your reality.
- Calculators exclude carrier surcharges, warehousing tiers, and program incentives for clarity.
- For mixed catalogs, run the FBT vs Seller tool per product family (fast movers vs. slow movers, bulky vs. light).
![Karat Pizza Boxes 12" x 12" x 2" [50 Pack] White Corrugated Boxes | Ventilated, Grease-Resistant, Durable for Pizza, Catering or Shipping Use](https://m.media-amazon.com/images/I/41HNCuoL4SL._SL500_.jpg "3 Free TikTok Shop Calculators: FBT vs. Seller Shipping, Live‑Sale Capacity, and Inventory Sync Risk 5")
Karat Pizza Boxes 12" x 12" x 2" [50 Pack] White Corrugated Boxes | Ventilated, Grease-Resistant, Durable for Pizza, Catering or Shipping Use
Durable & Sturdy Construction – Built with thick B-flute corrugated cardboard for reliable support whether serving pizza or…
As an affiliate, we earn on qualifying purchases.
As an affiliate, we earn on qualifying purchases.
What to do next
- If FBT and Seller are close on cost, try a hybrid: fast movers in FBT, long‑tail self‑fulfilled.
- If live events push you over SLA, raise staffing or increase your automation multiplier (batch labels, picklists, carrier rules).
- If oversell risk is high, either sync more frequently or raise safety stock on SKUs with spiky demand.
FAQ
Do these calculators send my data anywhere?
No. Everything runs entirely in your browser.
How accurate are the defaults?
They’re conservative baselines. Adjust inputs to reflect your operation—the results update instantly.
Can I share my scenario?
Yes. Use the Copy settings link button on any calculator to save or share your inputs and outputs.
