ShipCalc
Accurate delivery cost estimation across 9 carrier strategies
ShipCalc is a shipping cost calculation API and dashboard that supports 9 optimization strategies — cheapest, fastest, carbon-neutral, dimensional-weight, zone-skipping, and more. Feed it origin, destination, weight, and dimensions; get back a ranked list of options with real carrier rates.
MRR
$14,320
+12% this month
Active
487
+23 this month
Churn
1.8%
-0.4% this month
$14K/mo
Verified revenue
73%
Choose annual
98.7%
Uptime SLA
<2min
Setup time
The Problem
Sound familiar?
Checkout shipping estimates are wrong and cause post-purchase surprises for both seller and buyer
Comparing 9+ carriers manually to find the cheapest route is slow and error-prone
Dimensional weight penalties are invisible until the invoice arrives
The Solution
ShipCalc fixes this.
9 Optimization Strategies
Choose from cheapest, fastest, balanced, carbon-neutral, overnight, zone-skip, flat-rate, dimensional-weight optimized, and hybrid strategies per shipment type.
Real-Time Carrier Rates
Pulls live rates from UPS, FedEx, USPS, DHL, and regional carriers via their native APIs, with sub-200ms median response time.
Dimensional Weight Engine
Automatically calculates billable weight using each carrier's DIM factor, flags packages where DIM weight exceeds actual weight, and suggests box size changes.
How It Works
Set up in under 2 minutes. No complex configuration.
9 Optimization Strategies
Choose from cheapest, fastest, balanced, carbon-neutral, overnight, zone-skip, flat-rate, dimensional-weight optimized, and hybrid strategies per shipment type.
Real-Time Carrier Rates
Pulls live rates from UPS, FedEx, USPS, DHL, and regional carriers via their native APIs, with sub-200ms median response time.
Dimensional Weight Engine
Automatically calculates billable weight using each carrier's DIM factor, flags packages where DIM weight exceeds actual weight, and suggests box size changes.
REST API + Webhooks
Single POST endpoint returns ranked options in JSON. Webhook support for rate-change notifications and carrier outage alerts.
Why not the alternatives?
Same result. A fraction of the price.
| Product | Price | Core feature |
|---|---|---|
| ShipCalc | $0/once | Accurate delivery cost estimation across 9 carrier strategies |
| Enterprise tool | $149/mo | Overkill for most teams |
| DIY approach | 40+ hrs dev | High maintenance burden |
Integrates with your stack
Simple, Transparent Pricing
No per-user fees. No hidden costs. Cancel anytime.
Pay-as-You-Go
- $0.005 per rate request
- 500 free requests/month
- All 9 strategies
- REST API
Pro
- 50,000 requests/month
- All 9 strategies
- Carrier account integration
- Negotiated rate injection
- Dashboard analytics
- Priority support
Frequently Asked Questions
Can I inject my own negotiated carrier rates?
Yes. On the Pro plan you can upload your account-specific rate cards and ShipCalc will use them instead of published retail rates for comparisons.
Does ShipCalc create labels or just estimate rates?
ShipCalc is a rate-intelligence layer, not a label generator. It integrates with EasyPost, ShipStation, or your existing label workflow to hand off the winning rate.
Ready to get started?
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