Free Pig Farming KPI Calculator
Every piggery tracks farrowing rate, FCR, and mortality — but very few farmers know what a single percentage-point improvement in any one of them is actually worth at the end of the year. This pig farming KPI calculator does that math for you.
Enter your own sow numbers, feed prices, and current KPI performance below, then adjust any of the 11 KPIs across your breeding herd, grower herd, and whole herd to see its value per year in your own currency — isolated from all the other variables, so you can see exactly where to focus first.
Why isolate one KPI at a time?
Most farm budgets show you the big picture — total feed cost, total revenue, overall margin — but they don’t tell you which lever is worth pulling first. A 2 percentage-point drop in post-weaning mortality and a 5% improvement in feed conversion ratio might sound similarly “good,” but their Rand value per year on your specific herd size can be very different.
This tool holds every other KPI at its baseline and changes only one at a time, so the value you see for each row is that KPI’s contribution on its own — not a compounded, hard-to-untangle number.
Enter your farm's numbers below, then see what each KPI improvement is worth to your bottom line.
These drive every baseline and monetary value below. Change them to match your own operation.
Baseline KPI values (your current lower-range industry-standard performance)
Breeding Herd KPIs
Litters/sow/yr = 365 ÷ (Gestation + Days to weaning + WSI), scaled by farrowing rate. Every row holds all other KPIs at their baseline — each value isolates that one KPI's improvement, priced at the Gross Margin per Pig (GMP): revenue is Carcass Weight × Price per kg CCW, minus grower feed cost.
Grower Herd KPIs
Post-weaning mortality covers weaning through to market (distinct from pre-weaning mortality above). ADG's value is expressed as overhead/facility days saved, not extra pigs. Dressing % only shows a monetary value when the pricing basis above is set to CCW — under liveweight pricing, a heavier carcass at the same live weight doesn't change what you're paid, so the value is 0.
Whole Herd KPIs
Whole-Herd FCR and Overall Mortality are composite farm-level numbers that move automatically as breeding/grower KPIs change — treat these rows as a sense-check, not a separate lever.
Illustrative, not additive — KPIs interact (e.g. lower pre-wean mortality changes the base post-wean mortality acts on). Use this to compare which single lever matters most for your farm.
How this pig farming KPI calculator works
Most farm budgets show you the big picture — total feed cost, total revenue, overall margin — but they don't tell you which lever is worth pulling first. For example, a 2 percentage-point drop in post-weaning mortality and a 5% improvement in feed conversion ratio might sound similarly "good," but their value per year on your specific herd size can be very different.
This tool holds every other KPI at its baseline and changes only one at a time. As a result, the value you see for each row is that KPI's contribution on its own — not a compounded, hard-to-untangle number.
To use it:
- Open "Farm & market assumptions" and enter your own sow numbers, feed price, price per kg, and current baseline KPI values. Every figure below is driven by these — the defaults are a mid-size commercial herd, not a benchmark to aim for.
- Adjust the "Improvement" figure on any row — Breeding Herd, Grower Herd, or Whole Herd — to the change you're realistically targeting.
- Read off "Value / year" for that KPI, and the section/grand totals, to see where the biggest wins are sitting on your farm specifically.
FAQ
Commercial herds typically aim for somewhere in the 80–90% range, though this varies by genetics, management system, and how services are recorded. Use the calculator above with your own baseline to see what closing that gap would be worth on your farm.
Grower-to-finisher FCRs commonly sit between 2.5 and 3.2, with better-performing herds at the lower end (less feed per kg of gain). Since feed is typically the largest cost in pig production, even small FCR improvements tend to show up as some of the largest Rand values in the calculator above.
This depends heavily on farrowing rate, litter size, and mortality all acting together — which is exactly why it's a "Whole Herd" KPI in the calculator rather than something you can improve directly. Improve the underlying breeding and grower KPIs, and PSY moves as a result.
Each row's value assumes every other KPI stays at baseline. In reality, KPIs interact — e.g. lower pre-weaning mortality changes the base that post-weaning mortality acts on. Treat the Grand Total as a rough sense-check of scale, not a number to bank on, and use the individual rows to decide which single lever to pull first.
Want help turning these numbers into a plan?
Knowing which KPI to improve is the first step — building the systems to actually improve it is the harder part. Our Piggery Financial Analysis & Projections tool takes this further with a full multi-year forecast for your specific herd, and our Piggery Business Plan (Complete Bundle) covers the operational and financial planning side end to end.
If you're still shaping your farm's physical layout, our Piggery Design post and Piggery Design Plan are the natural next stop.
Get personalized help with your numbers
To get a personalized and prioritized assessment of your piggery, take the quiz here and forward your results to us. We'll send you a free plan of action in return. If you have questions on the calculator above please contact us below: