Ratio Grade Calculator
Enter your marks for each Ratio sub-topic to estimate your GCSE Maths grade. Based on AQA Higher Tier grade boundaries out of 80 marks.
| Grade | Marks Required | Percentage |
|---|---|---|
| 9 | 68 – 80 | 85% – 100% |
| 8 | 58 – 67 | 73% – 84% |
| 7 | 48 – 57 | 60% – 71% |
| 6 | 38 – 47 | 48% – 59% |
| 5 | 28 – 37 | 35% – 46% |
| 4 | 18 – 27 | 23% – 34% |
| 3 | 8 – 17 | 10% – 21% |
| Below 3 | 0 – 7 | 0% – 9% |
What Does the Ratio Topic Cover?
Ratio, Proportion and Rates of Change is the most applied topic in GCSE Maths. It connects directly to real-world problems — recipes, maps, speed, density, and currency exchange. Students who understand the logic behind ratio problems find them straightforward, but those who rely on memorised methods often struggle when the context changes. If your score is below Grade 5, focused work on Ratio and Proportion will give you the fastest improvement.
Ratio (20 marks)
Simplifying ratios, dividing quantities in a given ratio, and solving problems involving ratios. Combining ratios. Using ratios in context, such as recipe scaling and map scales. This sub-topic carries the most marks and appears in nearly every exam paper.
Proportion (15 marks)
Direct and inverse proportion, including recognising and using graphs of proportional relationships. Setting up and solving proportion equations. Understanding the relationship between proportion and linear/reciprocal graphs.
Rates of Change (15 marks)
Interpreting gradients of real-life graphs as rates of change. Calculating average and instantaneous rates of change. Understanding what the gradient represents in distance-time, velocity-time and other contextual graphs.
Compound Measures (15 marks)
Speed, density and pressure calculations. Using the correct formula and converting units as needed. Multi-step compound measure problems that require combining speed, distance and time or mass, volume and density.
Conversions (15 marks)
Converting between metric and imperial units, between units of area and volume, and between currencies using exchange rates. Understanding scale factors in similar shapes and their effect on length, area and volume.
How Think Smart Academy Can Help
Ratio questions test conceptual understanding, not just calculation. Our tutors teach students to think about what the numbers mean before they start computing. If you scored 6 out of 15 on Compound Measures, we will break down speed-distance-time and density-mass-volume problems using real examples until the relationships become intuitive. That is the difference between memorising a formula and truly understanding it.
Ratio tripping you up?
We will sort it out.
Book a free assessment and we will find the exact Ratio sub-topics where you are losing marks, then build a revision plan to close the gaps.
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