Professional Grade · Injection Mold Engineering
MOLDCALC
PRO

Scientific-grade injection mold calculators built by a toolmaker with 10+ years of real shop floor experience. Not textbook theory — actual production knowledge.

⚡ Open Mold Calculator
28+
Materials
8
Calculators
100%
Offline
Free
To Use
⭐ Featured Tool
MOLD DESIGN SUITE
The most complete injection mold calculator available online. 8 tabs covering every aspect of mold design — start here.
INJECTION MOLD CALCULATOR
📐
Mold Base & Insert Sizing
Auto layout, multi-insert, hot runner drops, slider placement
⚡
Clamp Tonnage
Machine recommendation with mold weight check
〰️
Runner & Gate Design
Auto sprue length from mold thickness, 28-material rules of thumb
❄️
Cooling System
Cooling time, circuit count, flow rate, channel layout
💰
Mold Costing & Part Cost
MYR / INR / USD / EUR — full production cost breakdown
⚡ Open Calculator
Opens in new tab · Works offline · Save/Load projects
8 Integrated Tabs
Material Database
28 Materials
PP · PE · ABS · PC · PA6 · PA66 · PBT · POM · PEEK · TPE · TPU + GF grades
Project Management
💾 Save as JSON · 📂 Load saved project · ⬇️ Export report · 🖨️ Print
📐 Mold Size
⚡ Clamp Tonnage
🔲 Insert & Cavity
〰️ Runner & Gate
❄️ Cooling System
💰 Mold Costing
🧩 Part Cost
📋 Summary Report
Tools
ENGINEERING CALCULATORS
Every tool built from real mold shop experience, not just theory
⭐ Start Here
📐
Mold Design Suite
Complete mold base sizing, insert dimensions, clamp tonnage, runner & gate, cooling system, mold costing and part cost — 8 tabs, all in one app.
Mold Size Tonnage Cooling Costing
Tap to open → works offline ↗
Coming Soon
🔬
Scientific Shrinkage
Multi-factor shrinkage calculator — wall thickness, surface texture, gate type, processing conditions and material grade. Under development.
Texture Anisotropic GF Materials
Coming
💧
Hydraulic Cylinder
Slider and core pull force calculator for hydraulic cylinders. Size your cylinders correctly the first time.
Cylinder Force Slider
Coming
📏
Draft Angle Analyzer
3D STL upload with color-coded draft angle visualization. Instant DFM feedback with AI-generated expert report.
3D STL DFM AI Report
Coming
🔧
Ejector Pin Calculator
Calculate ejector pin size, count and layout based on projected area, material and part geometry.
Ejection Force Pin Layout
Coming
⚖️
Shot Weight Calculator
Barrel size selection, plasticising rate, shot weight vs machine capacity with purge recommendations.
Barrel Shot Weight
Why MoldCalc Pro
BUILT BY A TOOLMAKER
🏭
Real Shop Floor Knowledge
Built by Shibin VK — 10+ years in injection mold toolmaking. Every formula validated against real production data.
📡
100% Offline
Works without internet. Once loaded, all calculations run locally. Your project data never leaves your device.
🔬
Scientific Shrinkage
The only calculator that accounts for surface texture effects on shrinkage — a real phenomenon experienced by every mold technician.
🧩
28+ Materials
Full material database with thermal, rheological and processing properties. From commodity PP to PEEK, GF grades included.
💾
Save & Load Projects
Export your full project as JSON. Load it back anytime. Share with colleagues. Never lose your calculations.
🇲🇾
Multi-Currency
Mold costing in MYR, INR, USD or EUR. Built for the Malaysia and India plastics manufacturing industry.